Adding performance tests

[helto4real]

Breaking change

Proposed change

This PR adds simple performance tests for NetDaemon. For now it is not able to run as part of the CI/CD pipeline but can be run locally. This is something that will be added in the future.

It adds a performance test server that fakes HA and a NetDaemon client project that contains apps that meassure and logs performance.

The PR also adds a small fix to HomeAssistantConnection that I found when writing the performance tests.

Type of change

• [ ] Dependency upgrade
• [ ] Bugfix (non-breaking change which fixes an issue)
• [ ] New feature (which adds functionality to an existing integration)
• [ ] Breaking change (fix/feature causing existing functionality to break)
• [x] 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

• [x] The code change is tested and works locally.
• [x] Local tests pass. Your PR cannot be merged unless tests pass
• [x] The code compiles without warnings (code quality check)
• [x] Tests have been added to verify that the new code works.

If user exposed functionality or configuration are added/changed:

• [ ] Documentation added/updated for http://netdaemon.xtz

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 66.66667% with 3 lines in your changes missing coverage. Please review.

Project coverage is 82%. Comparing base (f0480a1) to head (0edcb36).

Files	Patch %	Lines
...mon.HassClient/Internal/HomeAssistantConnection.cs	66%	1 Missing and 2 partials :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1145 +/- ## ==================================== - Coverage 82% 82% -1% ==================================== Files 190 190 Lines 3779 3784 +5 Branches 425 426 +1 ==================================== + Hits 3113 3116 +3 - Misses 501 502 +1 - Partials 165 166 +1 ``` | [Flag](https://app.codecov.io/gh/net-daemon/netdaemon/pull/1145/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=net-daemon) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/net-daemon/netdaemon/pull/1145/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=net-daemon) | `82% <66%> (-1%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=net-daemon#carryforward-flags-in-the-pull-request-comment) to find out more.

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