Ship Morale

Well, I couldn't sleep, so I went ahead and finished implementing Ship Morale decay. Ships should lose 0.1 Morale every 86400 seconds now. For now it will just go down to 0.0 and have no further effect, but implementing the Mutiny/Derelict code is going to be a fairly involved process so I'm going to table it for now. I will slowly add some effects of having medium or low morale in the next few weeks as I touch other things, like affecting the time it takes to complete actions or how much He3 you harvest from Gas Giants.

I'll also be adding the Shore Leave ship action at colonies. The basic action will just give a large boost to your ship's Morale level. When it's finished it will cost the ship owner stellars to grant Shore Leave. The higher rank your crew members are, the more it will cost, which will simulate the higher pay that higher ranks get. The colony you grant the Shore Leave at will receive some percentage of this cost, depending on the level of their Entertainment colony module. So a 2.5 level Entertainment module will mean that the colony will get 25% of what is spent by ships on Shore Leave, and a higher level module will give a higher morale boost.