Return combined latency information for all the resources used by a given application

Sample method invocation

  curl -X GET \
    -u userid:pw \
    -H 'Accept: application/json' \
    https://<mgmt-cluster-ip>/v1/portal/orgs/{orgID}/analytics/apps/{appID}/latencies/all?timeRange=<start_datetime>%20TO%20<end_datetime>