Implement Overkiz async_execute_commands

[nyroDev]

Breaking change

Proposed change

While implementing a new entity in PR #78659, I noticed multiple commands was always executing one by one.
This is not usaly a problem for simple entity because they call one command at once.
But for climate entities in the Atlantic/Somfy world, they usually need multiple commands to work correctly.
Doing only 1 call with multiple commands instead of multiple call for each command is great because:

• it only counts at one api CALL for rate limits
• it's done this way through the API
• the canceling could be done for all commands at once
• it only create 1 history log on overkiz side

The current entity that will benefit this change for now are:

• somfy_thermostat (3 or 4 calls down to 1)
• atlantic_heat_recovery_ventilation (3 or 4 calls down to 1)

I will do the changes on other entity when design of the function is correct and somfy_thermostat is validated

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes #
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Checklist

• The code change is tested and works locally.
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[homeassistant]

Hey there @iMicknl, @vlebourl, @tetienne, mind taking a look at this pull request as it has been labeled with an integration (overkiz) you are listed as a code owner for? Thanks!

[nyroDev]

Marked as draft as it's waiting further discussion and implementing details may need to change
previous comment on other PR
#78659 (review)
#78659 (review)

[nyroDev]

Oops, my merge/rebase messed up the whole PR.
So sorry for all personns that have been notified for nothing.

I'm closing this PR and start a new one to not bother all of you...