Quick change for compatibility with Buffs 'n Nerfs for the Generic Ammo Experience.

Tweaked the textures of the tribal backpack.

Added new sprites for cannon balls. They are both drawn at a much higher resolution and also come with stack variants, which the originals did not have.

Improvements to the generic-alization of railgun calibers.

Patched the foam turret to use chemfuel instead of a non-generic firefoam cartridge that no longer exists with generic ammo.
- Buffs 'n Nerfs for the Generic Ammo Experience adds firefoam as a tangible resource if you'd prefer that over chemfuel.

Tweaked the cost of the rocketswarm launcher to account for the changes I've made.

Tweaks to some language strings.

Rocketswarm pods and Onager turrets from VFE - Deserters now fire the new missile ammo instead of the placeholder pod rockets.
Makeshift slugs now deal a random amount of damage.

Texture variety fix.

Second hotfix.