feat: implement OneNet communication and ESP8266 integration

break: switch to c8t6

Core/Inc/esp8266.h

@@ -0,0 +1,18 @@
+#ifndef _ESP8266_H_
+#define _ESP8266_H_
+
+
+#define REV_OK		0	//接收完成标志
+#define REV_WAIT	1	//接收未完成标志
+
+
+void ESP8266_Init(void);
+
+void ESP8266_Clear(void);
+
+void ESP8266_SendData(unsigned char* data, unsigned short len);
+
+unsigned char* ESP8266_GetIPD(unsigned short timeOut);
+
+
+#endif