Added starfield, sun texture, Orbit tweaks, full screen mode, comments and refactoring

- Star field with auto-rotate! Take that, Windows 3.1!
- Enabled full-screen mode (fancy!)
- Removed pan mode from Orbit controls because it's dumb and it made fun of me in gym class
- Refactored and added comments, SO MANY comments
- Sexy self-initializing init function
- Sun now has more polygons (always more polygons) surface texture! So sexy!