Get Total Active Tasks Count
Get the total count of tasks for all tenants.
Returns the total count of tasks for all tenants with the following statuses:
                    SCHEDULED, PROCESSING,
                    PAUSING, PAUSED, CANCELING,
                    WAITING_FOR_RESOURCE.
Request
 GET {ApplicationURL}/tasks/_total
            Response
JSON object with the total number of active tasks related to tenants that are accessible for the user.
{
   "total":13
}