Add galaxy_roles also to roles directory.

[kbidarkar]

@flatfender was suggesting we have both galaxy_roles and roles together.

[kbidarkar]

ansible-galaxy will install roles by default into the first found path in roles_path.

[ehelms]

I think this has the potential to cause developers to commit galaxy roles which is not what you want. I'd suggest keeping the current pattern or installing them into roles/galaxy_roles and ensuring in either case the directory is in .gitignore.

[flatfender]

@ehelms As I understand things, if you pull in a galaxy role in tower, it will put it in the roles directory as opposed the roles/galaxy_roles directory? Seems like we don't need roles/galaxy_roles and that keeping that will cause more confusion. Have you seen this?

[ehelms]

Can you configure Tower where to put galaxy roles? I also would not make using this repository directly more confusing just because of Tower. Not everyone will use Tower with this repository and you can likely configure Tower more directly than the ansible.cfg here.