swig_add_module does not allow to set the type for the library and
instead always create the library as MODULE.

This patch adds the new swig_add_library command with this signature:

  SWIG_ADD_LIBRARY(<name>
                   [TYPE <SHARED|MODULE|STATIC>]
                   LANGUAGE <language>
                   SOURCES <file>...
                   )

The swig_add_module is deprecated in favour of swig_add_library.

Closes: #16415