Change to Shared Shields for Rails

For small ships that were built for looks, it becomes annoying having to replace any aesthetic rail parts after a battle that lowers the ship's shields below 50%. For example, a small fighter that has its windshield on rails (like a Star Wars X-wing) and/or landing legs on rails often needs to have them replaced after battles, even if the rest of the ship's shields never reached zero.

Turrets should still only have 50% shields since they are a part of combat, but aesthetic parts should be...

Change to Shared Shields for Rails