Start of repeater role with in firmware

src/modules/RepeaterModule.cpp

@@ -0,0 +1,27 @@
+#include "RepeaterModule.h"
+#include "MeshService.h"
+#include "NodeDB.h"
+#include "Router.h"
+#include "configuration.h"
+#include "main.h"
+
+RepeaterModule *repeaterModule;
+
+bool RepeaterModule::handleReceivedProtobuf(const meshtastic_MeshPacket &mp, meshtastic_Routing *r)
+{
+    printPacket("Repeater rebroadcasting", &mp);
+    meshtastic_MeshPacket *p = const_cast<meshtastic_MeshPacket *>(&mp);
+    router->send(p);
+    return true;
+}
+
+meshtastic_MeshPacket *RepeaterModule::allocReply()
+{
+    return NULL;
+}
+
+RepeaterModule::RepeaterModule() : ProtobufModule("repeater", meshtastic_PortNum_ROUTING_APP, &meshtastic_Routing_msg)
+{
+    isPromiscuous = true;
+    encryptedOk = true;
+}