Slight item field name refactorization.
Rendering changes to match AIRI's new ModelTexMap methods.
Moved the MarineTypes enum to its own class in the util package.
EntityBullet can now be constructed using the target Entity instance to
set the bullet heading in the correct direction automatically.
Changed default xenomorph knockback resisitance to 1F.
Grenades were causing entity damage in too large of a radius. Radius
lowered.
Changed the access of several fields, created getters for several of
those fields, and renamed the field 'sound' to 'gunfireSound'.
Marine entity AI optimizations, should fix several AI problems,
including one where Marines would not attack mobs.
Marines now fire their weapons at the correct firerates and play the
correct gunfire sounds.
Marines are now a lot more badass than before.
Fixed an NPE while switching inventory items.
Refactorization and Optimization
Marine AI Improvements
Acid pool rendering improvements
Changes to match ModelTexMap's new methods
Marines will no longer shoot each other to death
Fixed a few problems with gui element input.
Fixed a ConcurrentModificationException while opening the Tactical HUD
Settings GUI.