Capital Ship Interiors added to Symphony of Stars!

I thought you guys might like this, took a bit of time to do. There's not much point gameplay wise to walking around them right now, but you can if you like! Fly to a planet and then walk around the bridge and look out the window at it or such.
In the future I would like to grant more gameplay focused things to capital ships, like friends docking their fighters on them and even being able to run around while onboard to repair things and such.