nested role dependencies

[gurpalw]

rolecule currently doesn't support scenarios where Role A depends on RoleB, where RoleB depends on RoleC.

An error like the below will appear:

ERROR! the role 'RoleC' was not found in ansible.legacy:/etc/ansible/roles/RoleA/tests/roles:/etc/ansible/roles:/etc/ansible/roles:/etc/ansible/roles/RoleA/tests