Add printConfig to Tester plugin

src/sensors/tester/TesterSensorBase.h

@@ -16,6 +16,7 @@ public:
 	TesterSensorBase(const std::string& name) : SensorBase(name) {}
 	virtual ~TesterSensorBase() {}
 
+	void printConfig(LOG_LEVEL ll, LOGGER& lg) { /* nothing to print */ }
 };
 
 #endif /* TESTER_TESTERSENSORBASE_H_ */

src/sensors/tester/TesterSensorGroup.cpp

@@ -81,3 +81,9 @@ void TesterSensorGroup::readAsync() {
 	}
 	_pendingTasks--;
 }
+
+void TesterSensorGroup::printConfig(LOG_LEVEL ll) {
+    LOG_VAR(ll) << "   Value:       " << _value;
+    LOG_VAR(ll) << "   Num Sensors: " << _numSensors;
+    LOG_VAR(ll) << "   MQTT start:  " << _mqttStart;
+}

src/sensors/tester/TesterSensorGroup.h

@@ -29,6 +29,8 @@ public:
     std::string getMqttStart() 		  { return _mqttStart; }
     unsigned int getNumSensors()      { return _numSensors; }
 
+    void printConfig(LOG_LEVEL ll) override;
+
 private:
 	void read()			override;
 	void readAsync()	override;