QuiverBow

- Fixed the AA not remembering how to use the contents of its first rail.
- Fixed the Four-Headed Dragonbox only reloading 2 rockets per bundle, instead of 8
- Fixed the Snow Cannon eating 4 blocks of snow with every shot, instead of just 1
- Fixed the Seed Sweeper model still having a jar on it, even when empty
- Fixed reloading with magazines not working. (That snuck in in the last build, I think.)
- Fixed the Arms Assistant not accepting replacing empty magazines with fresh ones. Tch.
- Fixed the AA not properly deducting ammo from certain slots and ammo types. (Didn't update a bounds check to make use of the changed item storage.)
- Added a config option to the rocket launchers and the ERA to not damage terrain when in player hand
- Changed the Obsidian Splinter Pistol to split every splint in half (Something that was lost when it was changed to using magazines),
  giving it effectively double the ammunition again. (Dropping the magazine does mean some loss, though. Can't put back together what was split.)
- Added the Riding Upgrade to the Arms Assistant. You can now upgrade it with a saddle and ride it around (assuming it's mobile; It's gonna be a short ride without that.)
  By extension it will also fire its weapons if you attack with the QuiverBow weapon in the first slot of your hotbar
- Added the "STAGGER FIRE" command, which can be written into the book. It'll cause the AA to wait until the first rail is done with half its cooldown before firing the second rail.
  That should help with not wasting two shots on the same target