Corpses persist [Pet revival :D]

Gave Totems of Undying the ability to revive a dead mob. For clarity it HAS to be thrown, usually only possible with players(evoker drops doesn't count). Might wanna leave & rejoin afterwards though, as the death animation still persists, which can be wonky to look at.

Added a configuration that allows the player to change whether or not slimes & magma cubes are able to persist after death.