[bulk] Strip Games

create implication strip_poker -> strip_game
create implication strip_mahjong -> strip_game
create implication strip_game -> playing_games

Link to request

Because I've seen the strip poker tag applied to characters playing card games other than poker (post #1143408) or games that don't even use playing cards at all (post #466367). (I've manually changed the tags around now, though.)

EDIT: Just noticed that the strip poker wiki mentions the tag being allowable for any card game. My point about the non-card game situation still stands, though.

If rock_paper_scissors would fall under strip_game, then I'm not sure about the strip_game -> playing_games implication. So far RPS is mutually exclusive from playing_games, and playing_games itself seems to be about structured games like cards, board games, and video games.

For now I'll do the first two.

The bulk update request #917 has been approved.