get sensor and NMEA data from indicator. Will test tomorrow, don't merge yet.

src/main.cpp

@@ -22,6 +22,10 @@
 #include "error.h"
 #include "power.h"
 
+#ifdef SENSECAP_INDICATOR // on the indicator run the additional serial port for the RP2040
+#include "IndicatorSerial.h"
+#endif
+
 #if !MESHTASTIC_EXCLUDE_I2C
 #include "detect/ScanI2CTwoWire.h"
 #include <Wire.h>
@@ -692,6 +696,11 @@ void setup()
     buttonThread = new ButtonThread();
 #endif
 
+// If we have an indicator, start process to service secondary port
+#ifdef SENSECAP_INDICATOR
+    sensecapIndicator.begin(Serial2);
+#endif
+
     // only play start melody when role is not tracker or sensor
     if (config.power.is_power_saving == true &&
         IS_ONE_OF(config.device.role, meshtastic_Config_DeviceConfig_Role_TRACKER,