chore: restore frost_sta_client/model/__init__.py

Author: uwzm

frost_sta_client/model/__init__.py

@@ -1 +1,13 @@
+from frost_sta_client.model import actuator
+from frost_sta_client.model import datastream
 from frost_sta_client.model import entity
+from frost_sta_client.model import feature_of_interest
+from frost_sta_client.model import historical_location
+from frost_sta_client.model import location
+from frost_sta_client.model import multi_datastream
+from frost_sta_client.model import observation
+from frost_sta_client.model import observedproperty
+from frost_sta_client.model import sensor
+from frost_sta_client.model import task
+from frost_sta_client.model import tasking_capability
+from frost_sta_client.model import thing