Rewrote herb cleaning to listener
Fixed studded leather crafting level requirement and xp
Fixed bow stringing stealing strings
::quest <player> can now be used to look up a player's completed quests
Unified kotlin and java into just src/main
Unified the rs09 and core packages
Took all content out of the core package, and placed it into the new content package
Reorganised all source code relating to content to be easier to find and explore