More multiplayer fixes — Bullets Are Fatal! Steam update #672773

Players can now stomp and use skills in multiplayer. Currently "bullet time" is disabled, have to figure out how (if ever) it will work in multiplayer... Furthermore bullets now should be more accurate between different players, reducing "false positive" kills. Added skill icons to player status bar, shows if the skill is ready, still working on visuals (we know, tooltip is way too small to understand which button you should press.) FYI: "left shift" activates "long skill" (currently only Bullet Time) and "Q" or "right mouse button" activates "quick skill" (currently only Deflection Blast). Also we noticed that controllers aren't working anymore, we're working on getting that fixed.