Initial support for the ICPad

- Basic support for up to 4 ISSI chips (and partial support for 16 chip configurations)
- Initial USB mux support
  * Required USB re-init procedure
- Initial interconnect mux support
  * Required some state reset commands

Scan/UARTConnect/connect_scan.h

@@ -163,6 +163,7 @@ extern uint8_t Connect_master; // Set if master
 
 void Connect_setup( uint8_t master );
 void Connect_scan();
+void Connect_reset();
 
 void Connect_send_ScanCode( uint8_t id, TriggerGuide *scanCodeStateList, uint8_t numScanCodes );
 void Connect_send_RemoteCapability( uint8_t id, uint8_t capabilityIndex, uint8_t state, uint8_t stateType, uint8_t numArgs, uint8_t *args );