Allow userspace the opportunity to handle keycodes

keyboards/cannonkeys/stm32f072/keyboard.c

@@ -162,7 +162,7 @@ bool process_record_kb(uint16_t keycode, keyrecord_t *record) {
 	}
     #endif //DYNAMIC_KEYMAP_ENABLE
 
-  return true;
+  return process_record_user(keycode, record);;
 }