Merge pull request #37 from RoyalDev/newtrade

Added: New trade interface
Fixed: Missing config
Added: New kit system

Cooldowns don't work yet, but everything else should work. Be sure to check the config for the new format.
Fixed: Kit enchantments
Merge branch 'newkits' of github.com:RoyalDev/RoyalCommands into newkits
Updated: Extract RPlayer interface
Added: Cooldown implementation and description