Started to create new Bullet class that is specific to the gun.
Turns out we need the setVelocity function.
Created what should be a working PistolBullet class.
Removed PistolBullet, I think I know how to do this in one class.
Type now depends on the current chosen weapon.
Setting up for graphic specification for Bullet class.
Defined sprite graphic for shotgun.
Created damage control for Agent, but it still needs work for the removal. So it will compile, but the Agents will not die.