Test performance optimization scripts

Add performance optimization scripts (but there are some graphic bugs, I will find them one by one afterwards)

Change the AI of raccoon, it's more difficult to avoid

Added second stage of raccoon

The water in the pool is more beautiful

You can use the "Long press Q to restart quickly" function from the very beginning of the game

Only testing frame rate stability, no new content, so no translation yet (no new text at all)

增加性能优化脚本（但是有一些图形bug，我会之后一一找出来）

更改浣熊的AI，更难以避开了

增加了浣熊的第二阶段

水池的水更漂亮

从最开始进行游戏时可以使用“长按Q快速重启”功能

仅仅是测试帧数稳定性，没新增内容，所以暂时还没翻译（根本没有新的文本）