Places: Usable nodes now include workplaces
Small bug fixes.
Relationships: Small bugfix with gift item response.
Occupations: Add work node descriptions.
Experimental "priest" occupation.
Relationships: Re-write to the way favorite/disliked items are defined, now allow Minetest's like registration as well.
Random data: Random data now includes registrations for gift items and dialogues.
Places: Added functions for adding and getting places, and for finding places of specific types. Added beds, chairs and chest as places.
NPC: Added places map and action queue.
Moved trading and pricing code to another folder, separate files.
NPC: Added further inventory functionality.
Trading: Added price data structure, which allows for setting prices for items. Also includes some default definitions.
