Human Trafficking (NPC's, Dynamic Payouts, Police Interaction)

UPDATE

1. Fixed being able to kill NPC's after latest GMod update.
2. Updated NPC codes to newer and cleaner code.
3. Added config HTConfig.HT_StartMissionNPCModel
4. Added config HTConfig.HT_FinishMissionNPCModel
5. Replaced all Distance with DistToSqr for optimization.
6. Fixed downloading old content pack.