Add entity filter to history panel

[spacegaier]

Breaking change

Proposed change

From time to time I find myself wanting to see the history for a specific single entity, but finding it in that huge page is tedious. Since the backend service already offers the option to filter, I copied over the relevant coding part from the logbook panel that already offers the filtering.

In the future it would be great if the entity picker would allow multi selections. Then we could make use of them here as well.

Type of change

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

Example configuration

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
• There is no commented out code in this PR.
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io