fram: 升级到4.6，将sprout的资源包一股脑全加进来了，另外没什么动力继续写了，玩边缘世界去了。

farm: Move and refactor some code, add new states to the state machine (Watering, Tilling). process 2h:00m

farm: Improved the character state machine and built a house scene. The current progress is about 1 hour and 12 minutes into the tutorial.

farm: add limboai as state machine

farm: 21分钟左右

Initial commit