first Draft of UART for external LoRa-Module

Software/include/lora_net.h

@@ -2,10 +2,16 @@
 #define _LORA_NET_H_
 
 #include <Arduino.h>
+
+#ifdef LORA_FEATURE_ENABLED
 #include <LoRa_E220.h>
+#elif defined(FEATURE_ENABLE_UARTLORA)
+#include <SoftwareSerial.h>
+#endif
 
 // local includes
 #include "lora_messages.h"
+#include "debugger.h"
 #include "defaults.h"
 #include "config.h"
 #include "globals.h"