Update Bat.cs and Camera.cs
Merge branch 'master' of https://github.com/yenhanshih/Lemon-Chiffon
Merge branch 'master' of https://github.com/yenhanshih/Lemon-Chiffon
Updated Bat.cs and Camera.cs

- Bat has acceleration movement, use WASD to move.
- Camera follows bat's z movement