[DISCUSS] Dashboard and Statistics

Tracked as SYNCOPE-750 and SYNCOPE-744.

The idea is to provide some general insights and statistics for the current domain, once logged into the admin console.

• General information
  
  • CPU usage
  • JVM memory usage
  • uptime
  • hostname, IP address
  • ConnId locations
• Configuration "completeness" - define some elements composing a "complete configuration", with an associated percentage (e.g. an account policy at least -> 10%, a password policy at least -> 20%, a resource at least -> 25% and so on), then report how much complete is the current configuration, with handful links for providing the missing bits
• Numbers (per realm)
  • Total
    
    • users (active, inactive, pending approval, ...)
    • groups
    • any objects
  • New in the last period (day / week / month)
    • users (active, inactive, pending approval, ...)
    • groups
    • any objects
• Tasks & Reports
  • Last N completed task / report executions, with status (SUCCESSS / FAILURE)
  • Running tasks / reports - with controls to force stop
• JPA cache statistics (disabled by default, can be enabled upon request, based on cacheStats.jsp)
• Reconciliation status - will provide handle to run the reconciliation report (from SYNCOPE-766) with information about how many users / groups / any objects are assigned to a given resource but not reported there