Current version:b0.1.1 当前版本：b0.1.1
An EPD Driver for GOOD-DISPLAY 2.9-Inch B-W-G color screen without full_screen buffer,to use low-end microprocessor like STM32F030F4P6.
佳显2.9寸三色EPD驱动，牺牲处理速度但无需开全屏缓冲，以便使用低RAM单片机，比如STM32F030F4P6。
How to use: EPD_Init-->EGuiInit-->EGuiUpdate
Changelog:
b0.1.1: Apr.02.2019 Fixed struct error
b0.1.0: Mar.27.2019 First demo