Remove config.c's dependencies on the mw.h/board.h files. Moved some RX

code into rx_common.c. Moved some GPS code into gps_common.c.  Isolated
some GPS functions into gps_common.c that were called from mw.c/loop().
moved gimbal defines into gimbal.h.  Moved sound & light code into
statusindicator.c

src/statusindicator.h

@@ -0,0 +1,3 @@
+#pragma once
+
+void blinkLedAndSoundBeeper(uint8_t num, uint8_t wait, uint8_t repeat);