Add Zeroconf discovery for ZigStar Zigbee coordinator to ZHA

[Hedda]

Breaking change

No.

Proposed change

[Work-In-Progress] This PR will add Zeroconf discovery for ZigStar LAN Gateway to the ZHA integration.

https://zig-star.com/projects/zigbee-gw-lan/

https://github.com/mercenaruss/zigstar_gateways

https://github.com/xyzroe/ZigStarGW-FW

WIP as @mercenaruss and @xyzroe who makes hardware and firmware still need to test/verify this:

xyzroe/ZigStarGW-FW#3

mercenaruss/zigstar_gateways#2

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)
• 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 #
• This PR is related to issue:
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the development checklist
• The code has been formatted using Black (black --fast homeassistant tests)
• 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

If the code communicates with devices, web services, or third-party tools:

• The manifest file has all fields filled out correctly.
  Updated and included derived files by running: python3 -m script.hassfest.
• New or updated dependencies have been added to requirements_all.txt.
  Updated by running python3 -m script.gen_requirements_all.
• For the updated dependencies - a link to the changelog, or at minimum a diff between library versions is added to the PR description.
• Untested files have been added to .coveragerc.

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To help with the load of incoming pull requests:

• I have reviewed two other open pull requests in this repository.

[probot-home-assistant]

Hey there @dmulcahey, @Adminiuga, mind taking a look at this pull request as it has been labeled with an integration (zha) you are listed as a code owner for? Thanks!
_{^{(message by CodeOwnersMention)}}

[frenck]

@Hedda I've changed the PR to be draft. Please use drafts on GitHub instead of spamming PR titles with [WIP] and such. Thanks 👍

Please git rebase this PR onto the latest dev branch to deal with the unrelated build issue.

[frenck]

It seems like you have manually edited this file. Please don't.

This is a generated file. Use python -m script.hassfest to update/re-generate it.

[github-actions]

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