Replaces the old flamethrower projectile animation with prettier flame. Works best with bloom enabled.

Added 7 additional frames, so this uses a shapes patch to append some bitmaps and frames to the explosions collection.

For added fun, make some custom physics with a slower, wandering flamethrower burst. Also cut down the firing sequence on anything using a flamethrower to one tick.

Action Video: https://www.youtube.com/watch?v=bYizcsvhMQQ