add missing authordeps
now packaging with [MakeMaker::Fallback] and [Module::Build::Tiny]
Class-Method-Modifiers-2.07

        - removed dependency on Test::Warnings in tests (now reserved for
          author testing)
        - now packaged with a Build.PL (for Module::Build::Tiny), and a
          Makefile.PL (for legacy 5.6 and 5.8 users; prints a warning on
          invocation)