* phpcs: enable also for config, resources and tests
* composer fix-style
* vendor/bin/phpunit -d --update-snapshots
* gha: instead of checking the style, fix and auto-commit it 💪
* phpunit: use dedicate `Tests` namespace for tests
* tests: replace phpunit with orchestra/testbench
* phpunit: ignore result cache file
* phpunit: adapt test for newer version
* tests: add base testcase class with a helper to run/assert commands
* tests: add test for ide-helper:eloquent
* travis: add global default variables
* travis: disable xdebug, speeds up running tests
* travis: convert php versions to build matrix for environment vars
* travis: only run phpcs/phpunit when the env vars signal it
However phpcs only runs with one test combination from the matrix,
not necessary to execute it every time.
Barry vd. Heuvelandbarryvdh
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Daniel Mason
Florian ReuschelandMarkus Podar
Yuta Nagamiya