Move esp8266 platform from "arduino" into "esp8266com"

hardware/esp8266com/esp8266/libraries/SPI/include/SPIImpl.h

@@ -0,0 +1,21 @@
+#ifndef SPIIMPL_H
+#define SPIIMPL_H
+
+#include <stdint.h>
+
+class SPIImpl
+{
+public:
+	virtual void begin() = 0;
+	virtual uint8_t transfer(uint8_t data) = 0;
+	virtual void transfer(void *buf, size_t count) = 0;
+	virtual void end() = 0;
+
+	virtual void setBitOrder(uint8_t bitOrder) = 0;
+	virtual void setDataMode(uint8_t dataMode) = 0;
+	virtual void setClockDivider(uint8_t clockDiv) = 0;
+
+};
+
+
+#endif//SPIIMPL_H