C++ 20 Modules Update

[Zingam (Hristo Hristov)]

@Zingam

target_sources("${PROJECT_NAME}"
PUBLIC
  FILE_SET cxx_modules TYPE CXX_MODULES
  FILES
    "src/MetaInfo/Details.cpp"
    "src/MetaInfo/Details.cppm"

It looks like not all of the proposal is implemented (or I do not understand it yet):

• [API Design][C++ Modules]: Source listings and interface properties
• https://cmake.org/cmake/help/latest/command/target_sources.html#target-sources