add gpio options in ini file

video_looper.ini

@@ -41,6 +41,12 @@ is_random = false
 #keyboard_control = false
 keyboard_control = true
 
+
+# Play video only if GPIO Pin is up (or down).
+gpio_control = true
+gpio_control_pin = 4
+gpio_control_upstate = 1
+
 # Set the background to a custom image
 # This image is displayed between movies
 # Can potentially look broken if video resolution is smaller than display resolution