Merge branch 'master' into refactor_network_devices

# Conflicts:
#	networkDevices/EthLan8720Device.cpp
#	networkDevices/W5500Device.cpp

networkDevices/NetworkDevice.h

@@ -31,6 +31,8 @@ public:
 
     virtual bool isConnected() = 0;
     virtual int8_t signalStrength() = 0;
+    
+    virtual String localIP() = 0;
 
     virtual void mqttSetClientId(const char* clientId);
     virtual void mqttSetCleanSession(bool cleanSession);