* default collection support
* playbooks run from inside a registered collection will set that collection as the first item in the search order (as will all non-collection roles)
* this allows easy migration of runme.sh style playbook/role integration tests to collections without the playbooks/roles needing to know the name of their enclosing collection
* disable default collection test under Windows
* enable collection search for role dependencies
* unqualified role deps in collection-hosted roles will first search the containing collection
* if the calling role has specified a collections search list in metadata, it will be appended to the search order for unqualified role deps
* disable cycle detection unit test
* failing on 3.7+, needs proper cycle detection
* see #61527
