Bait Radius Restriction

Defaults to 16. Implemented as a property so that it can be modified live.

This does not include the ability to cast Bait on others offensively.
I realized that would give an attacker the ability to kill someone without
going red. Additionally, there's no way to protect against such an attack
other than abusing safespots or logging; an offensive Bait in some
locations could be an instant death sentence. An offensive bait in
events, for example, could get hapless players immediately killed.

It just doesn't seem like a good idea without far more work put into the change.