Improved image handling

The given image is now rotated by 90 deg when attempting to send it to the epaper. This function was initally in main, but has been shifted.

inkycal/display/drivers/9_in_7.py

@@ -39,9 +39,10 @@ class EPD:
 
   def getbuffer(self, image):
     """ad-hoc"""
+    image = image.rotate(90, expand=True)
     image.convert('RGB').save(images+'canvas.bmp', 'BMP')
     command = 'sudo {}IT8951/IT8951 0 0 {}'.format(driver_dir, images+'canvas.bmp')
-    print(command)
+    #print(command)
     return command
 
   def setup(self):