relative optional parameter will now be handled by setting the RelativeName of the relative struct to NT converted and collapsed relative path and the ContainingDirectory to an open handle of current working directory. CurDir is currently not implemented.
-- v5: ntdll/tests: Tests for RtlDosPathNameToRelativeNtPathName_U_WithStatus ntdll: Implement handling of relative in RtlDosPathNameToRelativeNtPathName_U_WithStatus