Remove test files from Hyde package

[caendesilva]

Building a website with HydePHP is often a bit different than developing a full stack application with Laravel, as with Hyde you mainly focus on content for the frontend. For the majority of use cases, users of the Hyde/Hyde package will not need to run tests (and if they do, they'll likely be with a front end tool like Cypress, instead of PHPUnit/Pest).

Removing these test files from the split package will reduce complexity (and resolve hydephp/hyde#206). Users that need to run tests can with ease set up a suite by installing the framework of their choice. I also added a sample workflow file (the one currently in hyde/hyde what will be removed).

For now, I think the phpunit.dist.xml file can be kept, though I'm removing the Dusk one.

[codecov]

Codecov Report

Merging #282 (a699354) into master (4e9f7e4) will not change coverage.
The diff coverage is n/a.

@@             Coverage Diff             @@
##              master      #282   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
  Complexity       814       814           
===========================================
  Files            100       100           
  Lines           2043      2043           
===========================================
  Hits            2043      2043           

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