Issue #3055872 by heddn, catch, eiriksm: In place updates (from quasi-patch zip)

automatic_updates.services.yml

composer.json

config/install/automatic_updates.settings.yml

config/schema/automatic_updates.schema.yml

drupalci.yml

src/Services/InPlaceUpdate.php

src/Services/UpdateInterface.php

...omatic_updates/src/Controller/InPlaceUpdateController.php

...s/src/EventSubscriber/DisableThemeCsrfRouteSubscriber.php

...es/test_automatic_updates/test_automatic_updates.info.yml

...test_automatic_updates/test_automatic_updates.routing.yml

...est_automatic_updates/test_automatic_updates.services.yml

tests/src/Build/InPlaceUpdateTest.php

tests/src/Build/QuickStart/QuickStartTestBase.php