Initial code for ship abilities in place.

It's by no means done, or close, or good, or anything. Good luck, Jesse. *runs away*
Updated projectile velocity.
Healther, shields, regen, ship collision etc all work now.
Merge remote-tracking branch 'origin/feature/HUD' into implement/abilities

Conflicts:
	Assets/Scenes/main.unity
	Assets/src/Destructable/PlayerShip/ShipAction.cs
Push to have GUI issue resolved.
Fixed ShieldBar bug and looped player pausing.