added the TFT display library

libraries/TFT/TFT.cpp

@@ -0,0 +1,19 @@
+#include "TFT.h"
+
+#if (USB_VID == 0x2341) && (USB_PID == 0x803C) // are we building for Esplora?
+TFT EsploraTFT(7, 0, 1);
+#endif
+
+TFT::TFT(uint8_t CS, uint8_t RS, uint8_t RST) 
+  : Adafruit_ST7735(CS, RS, RST)
+{
+  // as we already know the orientation (landscape, therefore rotated),
+  // set default width and height without need to call begin() first.
+  _width = ST7735_TFTHEIGHT;
+  _height = ST7735_TFTWIDTH;
+}
+
+void TFT::begin() {
+  initR(INITR_REDTAB);
+  setRotation(1);
+}