1.7.0b2

Many Many improvements !

• Data polling is splitted across multiple coordinators. It means if one coordinator fails, only entity depending on this coordinator will be unavailable.
• Some part of the API are only fetched once a day (like facility name, mac addresses, firmware version, etc.)
• If all entities depending on a coordinator are disabled, this coordinator doesn't fetch the API anymore
• Adding VR51 child lock binary_sensor
• Adding humidity for a room climate if there is VR51
• Adding cooling_for_x_days_duration attribute if the zone is in quick mode QM_COOLING_FOR_X_DAYS
• Name of the event has changed from multimatic_refresh_entities to multimatic_refresh_event when quick_mode or holiday mode is changed