Add basic Supla cover support

[mwegrzynek]

Breaking Change:

Description:

New platform for Supla (https://www.supla.org) IoT components with covers support as a first step.

Related issue (if applicable): fixes #

Pull request in home-assistant.io with documentation (if applicable): home-assistant/home-assistant.io#8971

Example entry for configuration.yaml (if applicable):

supla:
    servers:
        - server: srv1.supla.org
          access_token: <really long access token you can get from integrations menu in Supla's web UI>

Checklist:

• The code change is tested and works locally.
• Local tests pass with tox. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.

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

• Documentation added/updated in home-assistant.io

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

• New dependencies have been added to the REQUIREMENTS variable (example).
• New dependencies are only imported inside functions that use them (example).
• New or updated dependencies have been added to requirements_all.txt by running script/gen_requirements_all.py.
• New files were added to .coveragerc.

If the code does not interact with devices:

• Tests have been added to verify that the new code works.

[homeassistant]

Hi @mwegrzynek,

It seems you haven't yet signed a CLA. Please do so here.

Once you do that we will be able to review and accept this pull request.

Thanks!

[MartinHjelmare]

Please add a manifest.json file under the integration component package. See other integrations for examples.

[MartinHjelmare]

Looks good!

Fix the two remaining comments, and I think we can merge.

[MartinHjelmare]

Nice!

I think you need to run the script/manifest/codeowners.py to update codeowners file.

Can be merged when build passes.

[mwegrzynek]

Nice!

I think you need to run the script/manifest/codeowners.py to update codeowners file.

Can be merged when build passes.

Hooray! :) Thanks for all the patient coaching and code checking!

[codecov]

Codecov Report

Merging #22133 into dev will decrease coverage by <.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##              dev   #22133      +/-   ##
==========================================
- Coverage   93.85%   93.85%   -0.01%     
==========================================
  Files         449      449              
  Lines       36765    36765              
==========================================
- Hits        34507    34505       -2     
- Misses       2258     2260       +2

Impacted Files	Coverage Δ
...ssistant/components/islamic_prayer_times/sensor.py	94.73% <0%> (-3.16%)	⬇️
homeassistant/components/uk_transport/sensor.py	94.16% <0%> (+0.72%)	⬆️

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