SPATZ migration + proper directory structure

spatz/sensors/temperature/__init__.py

@@ -0,0 +1 @@
+from temperature import TemperatureSensor

spatz/sensors/temperature/temperature.py

@@ -0,0 +1,13 @@
+from typing import List
+
+from spatz.sensors import Sensor
+from spatz.dataset import Dataset
+from spatz.transforms import Transform
+
+
+class TemperatureSensor(Sensor):
+    def __init__(self, dataset: Dataset, transforms: List[Transform] = []):
+        super(TemperatureSensor, self).__init__(dataset, transforms)
+
+    def _get_data(self) -> float:
+        return self._dataset.get_temperature()