Hitbox improvements

• By opening this merge request, you agree to release your code and all other changes under the GPL 3 license and to abide by the terms set by this license.

• Significant changes of this merge request have been added to the changelog.

• Fixed some hitboxes that were just completely weird (like Rock Snappers)

• Widened/enlarged some hitboxes to make aiming easier for bow users. Hitboxes that were too narrow relative to the visual model, or in general, made aiming unreliable. Additionally, enemies that like to melee-rush the player while having vertically short hitboxes can be very disorienting, as you would have to look almost straight down to aim for them if they were close enough.

• Added hitboxes for some entities that were missing

• Made a few other hitboxes fit the models a little better in my opinion