Clang support

Закрыто xottab-duty запросил слияние github/fork/GeorgeIvlev/feature/clang в xd_dev

Created by: GeorgeIvlev

  • Update main CMakeLists file for better development experience. All compiled libs now in BuildFolder -> Debug/Release -> libs
  • Format code. Simplify parentheses. Remove non-necessary parentheses.
  • Fixed problem with file not found on MVS compilation ( Windows ).
  • Fixed logical warnings/errors for clang compilation.
  • Fixed critical code errors to be able to build project with clang.
  • Fixed critical errors in code.
  • Fixed problem with SegFault when running with clang.
  • Fixed problem with screenshot. Segfault after autosave caused by types convertion.
  • Fixed compile error with non included _std_extensions.h file.
  • Fixed problem with "src/Layers/xrRender/SkeletonX.cpp:688:38: error member access into incomplete type 'Fvisual'"