A quick patch addressing some missing NSC section errors.

Patch notes:

-Added NSC Defence Station core and fixed section placement.
-Added NSC Fortress core and fixed section placement.
-Did some code ghost-busting, removed a bit of unnecessary garbage.

Known bugs:
-Some turrets clip in the fortress setup, this will be fixed and updated with an entirely new section setup next patch.
-Some NSC ship sections are missing.
-NSC Flagship stern still assumes Reptilian archetype.

Initial Release:

-Added corvettes and their sections
-Added cruisers and their sections
-Added destroyers and their sections
-Added battleships and their sections

-All NSC ships have placeholder sections
-Added unique Exploration cruiser stern and mid2 sections
-Flagships have an odd bug where they assume REPTILIAN STERNS. THIS WILL BE PATCHED WHEN THE FLAGSHIPS RECEIVE UNIQUE SECTIONS IN AN UPDATE.

-Added Mining stations
-Added Research stations
-Added Outposts
-Added Starports
-Added Starholds
-Added Starforts
-Added Citadels
-Added unique station sections.

-Added Titan sections
-Added Juggernaut model
-Added Colossus model and firing animations.

-And a whole lot more!