KPI Executions ACL

We wish to make some Executions publicly accessible, some restricted and some only for ADMIN.

Update KPI Execution to support permissions and update KPI service implementation:

• Updating Execution requires WRITE permission
• Reading Execution or any of its observations requires READ permission
• Add API endpoint to listExecutions to KPIReadController. It should return a list of executions but only the name and title properties.

Please update the UI and add "Permissions" button to KPI Execution display page.