Weapon switching

press e to swich weapons and fire purple bullets! I didnt delete a
prefab, github lies, it's still there. my solution was rather clunky,
but could be done right as long as bullet, bullet1 etc are named after
the weapons they go with (railgunbullet, punisherbullet, etc) using this
method we could also teak rof for each weapon, but currently hey both
use the same public float for their rof. Feel free to revert this if my
solution is terrible.