Added temperature and relay nodes

lib/HomieNodes/constants.hpp

@@ -0,0 +1,25 @@
+// Units
+#define cUnitDegrees "°C"
+#define cUnitHpa "hPa"
+#define cUnitMgm3 "g/m³"
+#define cUnitPercent "%"
+#define cUnitVolt "V"
+#define cUnitMeter "m"
+#define cUnitMicrosecond "μs"
+
+// Topics
+#define cStatusTopic "status"
+#define cUnitTopic "unit"
+#define cTemperatureTopic "temperature"
+#define cTemperatureUnitTopic cTemperatureTopic "/" cUnitTopic
+#define cHumidityTopic "humidity"
+#define cPressureTopic "pressure"
+#define cAbsHumidityTopic "abshumidity"
+#define cVoltageTopic "voltage"
+#define cBatteryLevelTopic "batterylevel"
+#define cDistanceTopic "distance"
+#define cPingTopic "ping"
+#define cChangedTopic "changed"
+#define cValidTopic "valid"
+
+