Console RBAC page updates for relabeling/updating references of "Inventory Groups" to "Workspaces" in support of the upcoming AuthZ updates.

• RBAC 
  • Roles (name and description): 
    • Inventory Groups Administrator 
    • Inventory Groups Viewer
    • Stage: https://github.com/RedHatInsights/rbac-config/blob/master/configs/stage/roles/inventory.json
    • Prod: https://github.com/RedHatInsights/rbac-config/blob/master/configs/prod/roles/inventory.json 
  • Permissions 
    • Groups
    • Stage: https://github.com/RedHatInsights/rbac-config/blob/master/configs/stage/permissions/inventory.json 
    • Prod: https://github.com/RedHatInsights/rbac-config/blob/master/configs/prod/permissions/inventory.json