Make flamethrowers more powerful against blob, space kudzu

[epicdwarf]

Flame throwers are EXTREMELY Broken. I say instead of having just blocks of flame come out of them, we have arcs of fire that light/destroy anything on the tile it touches. They would have to take a shit load of plasma to use and have small flame arcs to be balanced, but clearing out rooms full of shit would be a lot easier. Maybe have a non-traitor flamethrower have a 3 space arc and have a traitor version have a 5 or 6 space arc?