Add libraries, picocalc notes.

libraries/TFT_eSPI/TFT_Drivers/ILI9163_Rotation.h

@@ -0,0 +1,44 @@
+
+// This is the command sequence that rotates the ILI9163 driver coordinate frame
+
+  rotation = m % 4;
+
+  writecommand(TFT_MADCTL);
+  switch (rotation) {
+    case 0:
+      writedata(TFT_MAD_MX | TFT_MAD_MY | TFT_MAD_BGR);
+      _width  = _init_width;
+      _height = _init_height;
+	  #ifdef CGRAM_OFFSET
+        colstart = 0;
+        rowstart = 0;
+	  #endif
+      break;
+    case 1:
+      writedata(TFT_MAD_MV | TFT_MAD_MY | TFT_MAD_BGR);
+      _width  = _init_height;
+      _height = _init_width;
+	  #ifdef CGRAM_OFFSET
+        colstart = 0;
+        rowstart = 0;
+	  #endif
+      break;
+    case 2:
+      writedata(TFT_MAD_BGR);
+      _width  = _init_width;
+      _height = _init_height;
+	  #ifdef CGRAM_OFFSET
+        colstart = 0;
+        rowstart = 32;
+	  #endif
+      break;
+    case 3:
+      writedata(TFT_MAD_MX | TFT_MAD_MV | TFT_MAD_BGR);
+      _width  = _init_height;
+      _height = _init_width;
+	  #ifdef CGRAM_OFFSET
+        colstart = 32;
+        rowstart = 0;
+	  #endif
+      break;
+  }