Add heat_stack_owner role to admin project
Add heat_stack_owner role to admin project

The Orchestration service automatically assigns the heat_stack_user
role to users that it creates during stack deployment.
To avoid conflicts, do not add this role to users with the heat_stack_owner role.

Closes-Bug: #1690975

Change-Id: I7a4cb7f4a13de7be4fc9ce9c24057ece6a0ced5c

dardelean/kolla-ansible,dardelean/kolla-ansible,dardelean/kolla-ansible