Most names are now moddable. Harder to have duplicate names.

[GalacticChimp]

The names for the following entities are now stored in .json files and are loaded during game start:

• Sector
• Stars
• Space marines
• Imperials
• Orks
• Eldar
• Tau
• Chaos
• Imperial Ships
• Ork Ships
• Hulks

star names can no longer get duplicated. Even if the names run out, the game will simply star naming stars with a generic scheme: Star 81 etc

Fixes #204

[GalacticChimp]

looks like some sprite files got modified as well, I'll revert that