Pokémon Mystery Dungeon game implications

BUR #19991 has been approved by @evazion.

create implication pokemon_mystery_dungeon:_red/blue_rescue_team -> pokemon_mystery_dungeon
create implication pokemon_mystery_dungeon:_explorers_of_time/darkness/sky -> pokemon_mystery_dungeon
create implication pokemon_mystery_dungeon:_gates_to_infinity -> pokemon_mystery_dungeon
create implication pokemon_super_mystery_dungeon -> pokemon_mystery_dungeon
create implication pokemon_mystery_dungeon:_rescue_team_dx -> pokemon_mystery_dungeon

I finally got off my ass and made tags for the individual Pokémon Mystery Dungeon games. The remaining posts without specific copytags are all either too generic to be pinned to any one game, or OC content that doesn't exist in any of them.

I don't like how this gives us four copyrights tags per post: Pokemon Super Mystery Dungeon -> Pokemon Mystery Dungeon -> Pokemon (game) -> Pokemon. Pokemon copyright tagging is out of control, there a bunch of cases where a single post gets four or five copyright tags because of multiple layers of intermediate umbrella tags.

The bulk update request #19991 (forum #254518) has been approved by @evazion.