implemented.py: Allow filtering by --implemented or --unimplemented
implemented.py: Allow filtering by --implemented or --unimplemented

NightKev/fireplace,smallnamespace/fireplace,oftc-ftw/fireplace,Ragowit/fireplace,Meerkov/fireplace,beheh/fireplace,liujimj/fireplace,oftc-ftw/fireplace,smallnamespace/fireplace,Meerkov/fireplace,amw2104/fireplace,liujimj/fireplace,Ragowit/fireplace,jleclanche/fireplace,amw2104/fireplace