Swap levels panda_2 with panda_3
Add falling boulder
Add component requirements to each class

More safety is never bad.
Implement powerup

Also added powerups to levels 2 and 3
No need to continuously update static bamboo
Add checks to detect when ball is stuck
Stop ball when arrive to goal
Add placeholders for future content

- Add stubs for 7 levels
- Add placeholder art for walls and
- Add all levels to editor build settings
- Change cartoon stone texture wrap mode to Clamp
Improve levels 1,2,3 & Add levels 4,5
Add level 6 with changes to powerup
Make stuck detection sensitive to very tiny movements
Minor changes to level 6
Add level 7
Add level 8 and 9