Rename all library targets to start with wx. This way it does not use generic
names like base or core that could interfere with other libraries that add
include the wxWidgets project.
- Functions that set wxMONO_* vars need to set them in parent scope, from macros instead of functions (functions would need grandparent scope)
- Fix a conflict with xml library linking Mono which made core include the wrong png headers
- Fix setting of NOPCH on windows to go through the wx_lib_compile_definitions instead of target_compile_definitions so it carries to monolithic build
- Allow use of precompiled header in MSVC via calling wx_finalize_lib(mono)
- Introduce wxMONO_NONCOMPILED_CPP_FILES to deal with set_source_files_properties only applying within the current CMakeLists file
- Fix demos building against monolithic library by using wx_exe_link_libraries instead of target_link_libraries (similar to what the tests already do)
Closes#18074
Add CMake build system for libraries, tests and samples
update_files.py converts build/files into CMake format.
build/update-setup-h has been modified to update build/cmake/setup.h.in.
