- Add Win32 CopyFile, MoveFile, DeleteFile functions in WinFctHelper.
- rename FsPathPatch to StdPatch because this namespace will hold all standard library patches in future.
- add polyfill for std:basic_string::starts_with, std::basic_string::ends_with std::basic_string_view::starts_with, std::basic_string_view::ends_with in StdPatch.
- add polyfill for unordered and ordered associative standard library container's contains function in StdPatch.
- documentation and testbench will be fixed in later commits.
