STYLE: Improve code formatting with uncrustify

Replace many 'add' options by 'force' option for new line and space: if two ore more empty lines (or spaces) exist, modify them to make sure there is just one empty line (or space).

Add option to enforce a break line between namespace/class and brace character.

Add several more options to enforce space around operators/parenthesis/bracket etc.

Utilities/Uncrustify/iMSTKUncrustify.cfg

@@ -49,7 +49,7 @@ use_indent_func_call_param      = false    # false/true
 nl_end_of_file                  = add      # ignore/add/remove/force
 
 # The maximum consecutive newlines (3 = 2 blank lines)
-nl_max                          = 3        # number
+nl_max                          = 2        # number
 
 # Whether to remove blank lines after '{'
 eat_blanks_after_open_brace     = true     # false/true
@@ -58,67 +58,73 @@ eat_blanks_after_open_brace     = true     # false/true
 eat_blanks_before_close_brace   = true     # false/true
 
 # Add or remove braces on single-line 'for' statement
-mod_full_brace_for              = add      # ignore/add/remove/force
+mod_full_brace_for              = force      # ignore/add/remove/force
 
 # Add or remove braces on single-line 'if' statement. Will not remove the braces if they contain an 'else'.
-mod_full_brace_if               = add      # ignore/add/remove/force
+mod_full_brace_if               = force      # ignore/add/remove/force
 
 # Add or remove braces on single-line 'while' statement
-mod_full_brace_while            = add      # ignore/add/remove/force
+mod_full_brace_while            = force      # ignore/add/remove/force
 
 # Whether to remove superfluous semicolons
 mod_remove_extra_semicolon      = false    # false/true
 
 # Add or remove newline between 'enum' and '{'
-nl_enum_brace                   = add      # ignore/add/remove/force
+nl_enum_brace                   = force      # ignore/add/remove/force
+
+# Newline between namespace and {.
+nl_namespace_brace              = force   # ignore/add/remove/force
+
+# Add or remove newline between 'class' and '{'.
+nl_class_brace                  = force   # ignore/add/remove/force
 
 # Add or remove newline between 'struct and '{'
-nl_struct_brace                 = add      # ignore/add/remove/force
+nl_struct_brace                 = force      # ignore/add/remove/force
 
 # Add or remove newline between 'union' and '{'
-nl_union_brace                  = add      # ignore/add/remove/force
+nl_union_brace                  = force      # ignore/add/remove/force
 
 # Add or remove newline between 'if' and '{'
-nl_if_brace                     = add      # ignore/add/remove/force
+nl_if_brace                     = force      # ignore/add/remove/force
 
 # Add or remove newline between '}' and 'else'
-nl_brace_else                   = add      # ignore/add/remove/force
+nl_brace_else                   = force      # ignore/add/remove/force
 
 # Add or remove newline between 'else' and '{'
-nl_else_brace                   = add      # ignore/add/remove/force
+nl_else_brace                   = force      # ignore/add/remove/force
 
 # Add or remove newline between 'else' and 'if'
 nl_else_if                      = remove   # ignore/add/remove/force
 
 # Add or remove newline between '}' and 'finally'
-nl_brace_finally                = add      # ignore/add/remove/force
+nl_brace_finally                = force      # ignore/add/remove/force
 
 # Add or remove newline between 'finally' and '{'
-nl_finally_brace                = add      # ignore/add/remove/force
+nl_finally_brace                = force      # ignore/add/remove/force
 
 # Add or remove newline between 'try' and '{'
-nl_try_brace                    = add      # ignore/add/remove/force
+nl_try_brace                    = force      # ignore/add/remove/force
 
 # Add or remove newline between 'for' and '{'
-nl_for_brace                    = add      # ignore/add/remove/force
+nl_for_brace                    = force      # ignore/add/remove/force
 
 # Add or remove newline between 'catch' and '{'
-nl_catch_brace                  = add      # ignore/add/remove/force
+nl_catch_brace                  = force      # ignore/add/remove/force
 
 # Add or remove newline between '}' and 'catch'
-nl_brace_catch                  = add      # ignore/add/remove/force
+nl_brace_catch                  = force      # ignore/add/remove/force
 
 # Add or remove newline between 'do' and '{'
-nl_do_brace                     = add      # ignore/add/remove/force
+nl_do_brace                     = force      # ignore/add/remove/force
 
 # Add or remove newline between '}' and 'while' of 'do' statement
-nl_brace_while                  = add      # ignore/add/remove/force
+nl_brace_while                  = force      # ignore/add/remove/force
 
 # Add or remove newline between 'switch' and '{'
-nl_switch_brace                 = add      # ignore/add/remove/force
+nl_switch_brace                 = force      # ignore/add/remove/force
 
 # Add or remove newline between function signature and '{'
-nl_fdef_brace                   = add      # ignore/add/remove/force
+nl_fdef_brace                   = force      # ignore/add/remove/force
 
 # Don't split one-line braced statements inside a class xx { } body
 nl_class_leave_one_liners       = true     # false/true
@@ -126,8 +132,47 @@ nl_class_leave_one_liners       = true     # false/true
 # Don't split one-line C++11 lambdas - '[]() { return 0; }'
 nl_cpp_lambda_leave_one_liners  = true     # false/true
 
+# The number of newlines after '}' of a multi-line function body.
+nl_after_func_body              = 2        # unsigned number
+
 # Add or remove space around compare operator '<', '>', '==', etc
-sp_compare                      = add      # ignore/add/remove/force
+sp_compare                      = force      # ignore/add/remove/force
+
+# Add or remove space around non-assignment symbolic operators ('+', '/', '%',
+# '<<', and so forth).
+sp_arith                        = force   # ignore/add/remove/force
+
+# Add or remove space around boolean operators '&&' and '||'.
+sp_bool                         = force   # ignore/add/remove/force
+
+# Add or remove space after ',', i.e. 'a,b' vs. 'a, b'.
+sp_after_comma                  = force   # ignore/add/remove/force
+
+# Add or remove space inside a non-empty '[' and ']'.
+sp_inside_square                = remove   # ignore/add/remove/force
+
+# Add or remove space before '(' of control statements ('if', 'for', 'switch',
+# 'while', etc.).
+sp_before_sparen                = remove   # ignore/add/remove/force
+
+# Add or remove space inside '(' and ')' of control statements.
+sp_inside_sparen                = remove   # ignore/add/remove/force
+
+# Add or remove space after '(' of control statements.
+#
+# Overrides sp_inside_sparen.
+sp_inside_sparen_open           = remove   # ignore/add/remove/force
+
+# Add or remove space before ')' of control statements.
+#
+# Overrides sp_inside_sparen.
+sp_inside_sparen_close          = remove   # ignore/add/remove/force
+
+# Add or remove space after ')' of control statements.
+sp_after_sparen                 = remove   # ignore/add/remove/force
+
+# Add or remove space between ')' and '{' of of control statements.
+sp_sparen_brace                 = force   # ignore/add/remove/force
 
 # If true, cpp lambda body will be indentedDefault=False.
 indent_cpp_lambda_body          = false    # false/true
@@ -152,4 +197,5 @@ cmt_indent_multi                = false    # false/true
 
 # The filename that contains text to insert at the head of a file if the file doesn't start with a C/C++ comment.
 # Will substitute $(filename) with the current file's name.
-cmt_insert_file_header          = "../HeaderForSources.txt"
\ No newline at end of file
+cmt_insert_file_header          = "../HeaderForSources.txt"
+