v5.0.0 - NPC improvements

[^] Internally revamped the NPC system. You will have to re-do all NPC stuff (so basically re-assign all your NPCs). Nothing new was added, though this change allows me to easily add support for different NPC plugins in the future, like zNPCs.
[^] Performance & internal improvements
[+] predefinedProgressOrder (no docs for that yet, but maybe you can figure it out. Makes linear quest or objective progression 1000x faster to do)
[+] New Feature: custom font nametag above npc when a quest is available (resourcepack). No idea if this works, it seems to be a little buggy. Feel free to test it
[!] Bug Fix: Consider items in equipment slots for item removal in DeliverItems objective
[!] Remove quest from active quests if it should be completed during CompleteQuestAction
[!] Fix bug in smelt objective where players are able to get free progress by putting items in their inventory while in furnace mode and removing them again
[!] Fix ConcurrentModificationException for integrations loading