Add helm-chart product/image pingtoolkit

[tsigle]

Add pingtoolkit as an image to deploy with Ping Helm Charts. This will allow for a deployment/statefulset deployment of pingtoolkit. Default it with a values.yaml of (same as ldap-sdk-tools):

#############################################################
# pingtoolkit values
#############################################################
pingtoolkit:
  enabled: false
  name: pingtoolkit
  image:
    name: pingtoolkit

    probes:
      livenessProbe:
        exec:
          command:
            - echo
      readinessProbe:
        exec:
          command:
            - echo

Because this is an image that's based on pingcommon, it will perform all normal steps of startup, but default with STARTUP_COMMAND of tail -f /dev/null, basically creating a pod that is running, ready to exec into for work.