Bounty Hunting Game Mode System created for servers running TShock.

• Most of the commands are sorted out. Sadly /bty -info seems to mess up because...
• ... it keeps adding to list wrong. Though I think I know what it is.
• Bounty completion/failures still untested.
• Other minor bug fixes.

• Engine dependent on how I think PacketTypes.KillMe and PacketTypes.PlayerDamage works.
• SEconomy still needs to be figured out.
• All commands should work beautifully.
• No testing thus far (yey!).