Happiness (is a) Warm Gun

v3.0.0

• Updated to 1.21.1 for Fabric/NeoForge now.
• Uses CommonNetwork for all packet related things.
• Changed so min spawn weight and group can be set to 0.

KNOWN ISSUE: VILLAGERS DON'T PROPERLY TAKE PROFESSION FROM GUN TABLE BLOCK, AWAITING A REPLY FROM NEOFORGE ON WHY THIS IS HAPPENING AS THE SAME CODE IS WORKING FINE FOR FABRIC VILLAGERS