Make pods have charge for their weapon

[kyle2143]

I think that a heat meter is a good idea. And would be pretty simple to add. In the past I had talked about slightly reworking weapons to be closer too how weapons are in the game ftl. Where you have your weapons systems activated and over time you charge up lasers to use so you kinda have to fire in bursts. Both systems would accomplish a similar efdect i think. Letting pods shoot forever nonstop is kinda bad.