* Mark UCS integration tests as unsupported.
* Mark various connection tests as unsupported.
* Mark win_domain_group test as unsupported.
* Mark java_cert test as unsupported.
* Mark synchronize-buildah test as unsupported.
* Mark various AWS tests as unsupported.
* Mark azure_rm_acs test as unsupported.
* Mark GCP tests as unsupported.
Tests for:
* ecs_cluster
* ecs_service
* ecs_service_facts
* ecs_taskdefinition
* ecs_taskdefinition_facts
* Add idempotency testing
Test ecs_cluster, ecs_service and ecs_taskdefinition for trivial
idempotency. Add FIXMEs to the tests because the latter two fail.
Remove unused dependencies