Refactor speed test

[mustafaboleken]

#358

This pull request removes the mechanism to publish a stream before making play speed test for the play only users.
Instead of publishing and playing in the client side, it tries to play a "static" streamId which is called speedTestSampleStream in the same Ant Media Server application. Using a static stream reduces the load on the server side in case there are so much new play only users. I will add a mechanism to add a playlist and use the speedTestSampleStream streamId if there is no stream with id speedTestSampleStream

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 49.49%. Comparing base (b3b5f29) to head (2a07242).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #376   +/-   ##
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  Coverage   49.49%   49.49%           
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  Files          22       22           
  Lines        2174     2174           
  Branches      487      487           
=======================================
  Hits         1076     1076           
  Misses        958      958           
  Partials      140      140           

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