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

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

documentation/en/creation.md

@@ -49,7 +49,7 @@ When your device is controlled by a `climate` entity in Home Assistant and you o
 
 This type also includes advanced self-regulation features to adjust the setpoint sent to the underlying device, helping to achieve the target temperature faster and mitigating poor internal regulation. For example, if the device's internal thermometer is too close to the heating element, it may incorrectly assume the room is warm while the setpoint is far from being achieved in other areas.
 
-Since version 6.8, this VTherm type can also regulate directly by controlling the valve. Ideal for controllable TRVs, this type is recommended if you have such devices.
+Since version 6.8, this VTherm type can also regulate directly by controlling the valve. Ideal for controllable TRVs, as Sonoff TRVZB, this type is recommended if you have such devices.
 
 The underlying entities for this VTherm type are exclusively `climate`.