Make sendNodeDiscoverReq() public for post-boot discovery

examples/simple_repeater/MyMesh.h

@@ -119,7 +119,6 @@ class MyMesh : public mesh::Mesh, public CommonCLICallbacks {
 #endif
 
   void putNeighbour(const mesh::Identity& id, uint32_t timestamp, float snr);
-  void sendNodeDiscoverReq();
   uint8_t handleLoginReq(const mesh::Identity& sender, const uint8_t* secret, uint32_t sender_timestamp, const uint8_t* data, bool is_flood);
   uint8_t handleAnonRegionsReq(const mesh::Identity& sender, uint32_t sender_timestamp, const uint8_t* data);
   uint8_t handleAnonOwnerReq(const mesh::Identity& sender, uint32_t sender_timestamp, const uint8_t* data);
@@ -177,7 +176,7 @@ public:
   MyMesh(mesh::MainBoard& board, mesh::Radio& radio, mesh::MillisecondClock& ms, mesh::RNG& rng, mesh::RTCClock& rtc, mesh::MeshTables& tables);
 
   void begin(FILESYSTEM* fs);
-
+  void sendNodeDiscoverReq();
   const char* getFirmwareVer() override { return FIRMWARE_VERSION; }
   const char* getBuildDate() override { return FIRMWARE_BUILD_DATE; }
   const char* getRole() override { return FIRMWARE_ROLE; }