[Ready for Review] after role deactivation stop services and remove HA resources

Once that PR is reviewed and accepted, I can start to finish the feature for the other barclamps as well. 
So please have a look at this one, as it will be similar to the other barclamps.
@MaximilianMeister Agreed with the consistency part.

I still don't think it makes sense to split attributes files at this point. It would just create unnecessary work and it makes it harder to look for an attribute default when debugging. 

Regarding the separate file for ha attributes, I think something like that might make sense. If we kept the crowbar/SUSE-specific attributes separate it would help keep things clearer when porting to/wrapping the upstream cookbooks. But this is a discussion for another time I suppose.