Issue #3245996 by phenaproxima: Move basic exclusions and test coverage into Package Manager

automatic_updates.services.yml

package_manager/package_manager.services.yml

...e_manager/src/EventSubscriber/ExcludedPathsSubscriber.php

package_manager/tests/fixtures/fake_site/composer.json

package_manager/tests/fixtures/fake_site/private/ignore.txt

...nager/tests/fixtures/fake_site/sites/default/services.yml

...tests/fixtures/fake_site/sites/default/settings.local.php

...nager/tests/fixtures/fake_site/sites/default/settings.php

..._manager/tests/fixtures/fake_site/sites/default/stage.txt

...sts/fixtures/fake_site/sites/example.com/files/ignore.txt

...r/tests/fixtures/fake_site/sites/example.com/services.yml

...s/fixtures/fake_site/sites/example.com/settings.local.php

...r/tests/fixtures/fake_site/sites/example.com/settings.php

...ager/tests/fixtures/fake_site/sites/simpletest/ignore.txt

package_manager/tests/fixtures/fake_site/vendor/web.config

...ackage_manager_bypass/package_manager_bypass.services.yml

...anager_bypass/src/PackageManagerBypassServiceProvider.php

package_manager/tests/src/Functional/ExcludedPathsTest.php

src/Event/ExcludedPathsSubscriber.php