All roles, where appropriate, should be given the ability to swap targets at night

[Asorailahd]

This issue is primarily related to the wolfteam role, hag. As of now, the hag is not allowed to retract their hexes. However, I feel that it's a novel enough idea to allow hags to retract their hexes and switch targets before the night is over.

[fndax]

Per discussion in #werewolf, this affects at least the following roles: assassin, wild child, hag, werecrow