Arkhamverse implications

BUR #52217 has been approved by @evazion.

remove implication batman:_arkham_asylum -> batman_(series)
remove implication batman:_arkham_city -> batman_(series)
remove implication batman:_arkham_knight -> batman_(series)
create implication batman:_arkham_asylum -> batman:_arkham_(series)
create implication batman:_arkham_city -> batman:_arkham_(series)
create implication batman:_arkham_origins -> batman:_arkham_(series)
create implication batman:_assault_on_arkham -> batman:_arkham_(series)
create implication batman:_arkham_knight -> batman:_arkham_(series)
create implication batman:_arkham_(series) -> batman_(series)

The Arkhamverse already has a parent-tag, and given how popular the series is it should all fall under it if you ask me, doing SSKTJL as a separate implication as it's a spinoff and the only game in the series to really dive into wider DC stuff, so it's a bit more iffy.

BUR #52218 has been approved by @evazion.

create implication suicide_squad:_kill_the_justice_league -> batman:_arkham_(series)

As mentioned this game's a spin off and focuses on the wider DC universe (It's in the name), so just in case made it a seperate BUR.

The bulk update request #52217 (forum #405087) has been approved by @evazion.

The bulk update request #52218 (forum #405088) has been approved by @evazion.