* Dxil container builder refactor + bug fix
- move from dxcompiler to DxilContainer.lib
- rename source file, move class definition to header file
- enable inheritance by changing microcom fields to protected
- enable AddPart for shader debug info
- move CreateDxcContainerBuilder to dxcapi.h to remove dependency
on DxilLibCreateInstance from DxcContainerBuilder.cpp
* Remove unused include
Helena Kotas