begin support for TFT displays

src/graphics/TFT.cpp

@@ -0,0 +1,17 @@
+#include "configuration.h"
+
+#include <SPI.h>
+#include <TFT_eSPI.h> // Graphics and font library for ST7735 driver chip
+
+#ifdef ST7735_CS
+
+TFT_eSPI tft = TFT_eSPI(); // Invoke library, pins defined in User_Setup.h
+
+void TFTinit()
+{
+    tft.init();
+    tft.setRotation(1);
+    tft.fillScreen(TFT_BLUE);
+}
+
+#endif