Add vera config entries support (#29880)

* Adding vera config entries support.

* Fixing lint error.

* Applying minimal changes necessary to get config entries working.

* Addressing PR feedback by further reducing the scope of the change.

* Addressing PR feedback.

* Fixing pyvera import to make it easier to patch.
Addressing PR feedback regarding creation of controller and scheduling of async config flow actions.

* Updating code owners file.

* Small fixes.

* Adding a user config flow step.

* Adding optional configs for user config flow.

* Updating strings to be more clear to the user.

* Adding options flow.
Fixing some PR feedback.

* Better handling of options.
PR feedback changes.

* Using config registry to update config options.

* Better managing config from file or config from UI
Disabling config through UI if config is provided from a file.
More tests to account for these adjustments.

* Address PR feedback.

* Fixing test, merging with master.

* Disabling all Vera UI for configs managed by configuration.yml.
Adding more tests.

* Updating config based on unique_id.
Addressing additional PR feedback.

* Rebasing off dev.
Addressing feedback.

* Addressing PR feedback.