Issue_766-enhance_power_management (#778)

* First implem + tests (not finished)

* With tests of calculate_shedding ok

* Commit for rebase

* All tests ok for central_feature_power_manager

* All tests not ok

* All tests ok

* integrattion tests - Do startup works

* enhance the overpowering algo if current_power > max_power

* Change shedding calculation delay to 20 sec (vs 60 sec)

* Integration tests ok

* Fix overpowering is set even if other heater have on_percent = 0

* Fix too much shedding in over_climate

* Add logs

* Add temporal filter for calculate_shedding
Add restore overpowering state at startup

* Fix restore overpowering_state

* Removes poweer_entity_id from vtherm non central config

* Release

* Add Sonoff TRVZB in creation.md

* Add comment on Sonoff TRVZB Closing degree

---------

Co-authored-by: Jean-Marc Collin <jean-marc.collin-extern@renault.com>

tests/test_presence.py

@@ -75,7 +75,7 @@ async def test_presence_feature_manager(
     assert custom_attributes["is_presence_configured"] is True
 
     # 3. start listening
-    presence_manager.start_listening()
+    await presence_manager.start_listening()
     assert presence_manager.is_configured is True
     assert presence_manager.presence_state == STATE_UNKNOWN
     assert presence_manager.is_absence_detected is False