Revize b5525aef

Re #8850 - Ověření funkčnosti - implementované enpointy

+ new use case add position to unit

• tweaking all calls to operations with units and sensors
  + adding sensor type enum from backend endpoint
  + some form validation :)
  - removing all endpoints from /senslog1

src/app/shared/api/endpoints/models.ts

@@ -20 +20 @@
 export { Observation } from './models/observation';
 export { Statistics } from './models/statistics';
 export { OldObservation } from './models/old-observation';
+export { SensorType } from './models/sensor-type';