Pl3xNPC

Fixes:

• Fixed all mob types (no mob will crash the client now)
• Fixed soft-dependency link error with VanishNoPacket
• Fixed so you can't select the same NPC over and over again (stopping the spam in chat).

Additions:

• Added new sub command to clear messages from NPCs.
• Added NPC animation on selection.
• Added new admin sub command to enable/disable NPC animation on select.
• Added new REQUIRED dependency of BKCommonLib

Other:

• Complete rewrite from the ground up (again).
• No more soft-dependency of ProtocolLib to make mob types work.