相关的Issue

#I4LIPP:feat：The interface layer and core layer of PWM module are separated

原因（目的、解决的问题等）

The PWM module now has only PWM_ Core. C does not conform to the specification according to the framework, and needs to be divided into interface layer and core layer

描述（做了什么，变更了什么）

pwm_ Core. C sorting out PWM_ If. C, and modify the compiled script

测试用例（新增、改动、可能影响的功能）