* Update directions

* Print message when using the table
* Remove duplicated comment
* Remove HAVE_LOG and HAVE_EXP checks, use generated table instead

* Updated output message
* Use 'target_compile_definitions' for HAVE_LOG and HAVE_EXP

Previously, the change from using TutorialConfig.h to
target_compile_definitions happened without explanation as part of Step 8.

* Clarify directions

* Move `option(USE_MYMATH...` to the same location in all CMakeLists files

* Fix typo in #include
* Remove CMakeLists file that users should create
* Clarify which files users are expected to create
* Highlight the importance of configuring TutorialConfig.h.in after
  the MY_MATH option has been set

* Update minimum required version to 3.10
* Use VERSION argument to project command rather than separate variables
* Replace `endif(USE_MYMATH)` with  more modern `endif()`
* Simplify the call to 'configure_file()'
* Add comments to tutorial.cxx to use as anchors in documentation
* Remove CMakeLists and TutorialConfig.h.in files that users should
  create. Consequently, remove Step1 from CMake tests.

a7a5f376 cmFileCommand: Use cmSubcommandTable
b66b7464 Introduce cmSubcommandTable
2b785875 cmFileCommand: turn into free function
9703c657 cmFileCommand: put subcommands in unnamed namespace
64f987c1 cmFileCommand: port to cmExecutionStatus
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !3657

1a47d368 cmDefinitions: Cleanups and optimizations
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !3666

ca292311 Autogen: Modernize to use cmStrCat for string concatenation
d02a99d9 Autogen: Modernize code to use cm::string_view for the info writer
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !3663

2171f6ec Swift: correct SONAME flag for Darwin targets
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !3640

e45187d5 FPHSA: Remove extra space in module components report
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Alex Turbov <i.zaufi@gmail.com>
Merge-request: !3655

5558070d cmExecutionStatus: Remove function Clear
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !3654

In cmDefinitions:
- sort methods in source code by static or not static
- use `std::unordered_set<cm::string_view>` instead of `std::set<std::string>`
  for duplications tests.

18ce372e Help: Add 3.15.2 release notes
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !3664

Merge-request: !3664

18b0330b clang-tidy: Enable performance-inefficient-string-concatenation
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !3648

7ed84b1e FindPython: ensure virtual environments are correctly handled
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !3649

959b97a2 Tests: testStringAlgorithms: Add cmTrimWhitespace, cmEscapeQuotes, cmTokenize
7fbcc16d cmStringAlgorithms: cmIsSpace, cmTrimWhitespace, cmEscapeQuotes, cmTokenize
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !3647

8fe129e3 Help: Fix spelling typo in `CMAKE_MESSAGE_INDENT` docs
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !3658

feeb0381 FindGLEW: Fix typo in verbose log message
ab822a9b FindGLEW: Add required OpenGL dependency in macOS
a8a3efa3 FindGLEW: Fix macOS library suffix selection
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !3656

8ed86860 find_package: Fix prefer-config mode to not fail on missing optional package
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !3653

493b8eae Help: Fix example output in the `CMAKE_MESSAGE_INDENT` documentation
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !3651

d192caef CMakeDependentOption: Document that 4th parameter follows if-syntax
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !3643

Merge-request: !3656

macOS requires OpenGL as INTERFACE_LINK_LIBRARIES dependency
in the GLEW targets. This commit fixes this issue.