Add getTemperature method

uvoscam.cpp

@@ -397,6 +397,23 @@ bool Camera::setExposureTime(uint64_t us)
 	return !error;
 }
 
+bool Camera::getTemperature(double& temperature)
+{
+	GError* error = nullptr;
+	bool temperatureAvailable = arv_camera_is_feature_available(aCamera_, "DeviceTemperature", &error);
+	if(error || !temperatureAvailable )
+		return false;
+	
+	temperature = arv_device_get_float_feature_value(arv_camera_get_device(aCamera_), "DeviceTemperature", &error);
+	
+	if(error)
+	{
+		Log(Log::WARN)<<error->message;
+		return false;
+	}
+	return true;
+}
+
 uint64_t Camera::getExposureTime()
 {
 	GError* error = nullptr;