implement clear-display script

clear_display.py

@@ -0,0 +1,12 @@
+"""
+Clears the display of any content.
+"""
+from inkycal import Inkycal
+
+print("loading Inkycal and display driver...")
+inky = Inkycal(render=True)  # Initialise Inkycal
+print("clearing display...")
+inky.calibrate(cycles=1)  # Calibrate the display
+print("clear complete...")
+
+print("finished!")