Shotgun improvements

[Wisecrack34]

...Rocksalt: Comes out as 4 projectiles, 3 of which offset after traveling 1 tile, then again after traveling 3. Does no damage or stun, but does have knockback and stamina damage. The Barman's shotgun ammo is replaced with this. Leaves trails of salt across the ground where the blast traveled...

Please let this damage wraiths :o

5 stars, wraiths beware! Should embed itself into the wraith, allowing crew to vaguely see it's location for a limited amount of time