initial app helpers completed - moving to make the default apps next.

macropad_os/app_utils/helper_funcs.py

@@ -0,0 +1,10 @@
+def clamp(num, min_value, max_value):
+   return max(min(num, max_value), min_value)
+
+
+
+def rgb_from_int(rgb):
+    blue = rgb & 255
+    green = (rgb >> 8) & 255
+    red = (rgb >> 16) & 255
+    return red, green, blue