整理資料夾、檔案

1. remove Library/  and Temp/
2. 整理scripts:

- GmaeStatic
- GUIMainScript
- Score

= Weapon
- Weapon
- Gun
- LaserGun
- SlowGun
- WeaponDetector
- Bullet
- SlowBullet
= Enemy
- Enemy
- Tank
= Util
- MyNavigation
= Test
- NavTankTest