* Add ema calculation class, calculate an emo temperature, use the ema_temperature in auto_window dectection
* Removes circular dependency error
* Fix ema_temp unknown and remove slope smoothing
* 15 sec between two slope calculation
* Take Maia feedbacks on the algo.
* Maia comments: change MAX_ALPHA to 0.5, add slope calculation at each cycle.
* With EMA entity and slope calculation optimisations
* Change open_window_detection fake datapoint threshold
* Try auto window new algo
* Don't store datetime of fake datapoint
* Change auto window threshold in °/hour
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Co-authored-by: Jean-Marc Collin <jean-marc.collin-extern@renault.com>