Small tweaks to Biorifle glob.
Redude size of ANIMDEFS.
Small corrections to biorifle gel (starts with a 3 second countdown, delay before explosion when on surface should be 3 to 10 tics)
- Made Kinsie's Test Map changes toggleable (off by default)
- Corrected physics of various projectiles
- Replaced textures of health items to something better looking
- Biosludge now only has a hitbox when stuck to surfaces, to be
more consistent with vanilla behavior
- Some code cleanup
