fix: cli temperature read

changes:
- fix: read temperature values without daemon
  Add subcommand to read temperature values without starting the daemon

- fix: implement measured value types
  Replace measured value types with constants

- fix: add sensor pipelines
  Add functions which returns a channel with measured values

- fix: filter measured values from a channel
  Add functions to filter measured values by sensor id or measured
  value types.

pkg/sensor/bme280.go

@@ -66,21 +66,21 @@ func (bme280 *BME280) Read() ([]*types.MeasuredValue, error) {
 		{
 			ID:        uuid.NewV4().String(),
 			Value:     float64(humidityValue),
-			ValueType: "humidity",
+			ValueType: types.Humidity,
 			Date:      format.FormatedTime(),
 			SensorID:  bme280.ID,
 		},
 		{
 			ID:        uuid.NewV4().String(),
 			Value:     float64(pressureValue),
-			ValueType: "pressure",
+			ValueType: types.Pressure,
 			Date:      format.FormatedTime(),
 			SensorID:  bme280.ID,
 		},
 		{
 			ID:        uuid.NewV4().String(),
 			Value:     float64(temperatureValue),
-			ValueType: "temperature",
+			ValueType: types.Temperature,
 			Date:      format.FormatedTime(),
 			SensorID:  bme280.ID,
 		},