feat(influxdb-enterprise): allow to customize meta service properties

[sranka]

This PR allows customizing influxdb-enterprise meta service the same way as it is already possible for the data service. I.e.
meta.service.type can change the k8s service type and a few other other attributes can be specified when using LoadBalancer service type.

Additionally meta.service.nodePort and data.service.nodePort can further specify fixed (main) HTTP node ports when NodePort service type is used.

These changes make it easy for me to customize influxdb-enterprise helm chart locally for development, by changing data/meta services to NodePort and assigning a specific nodePort.

helm upgrade --install influxdb influxdata/influxdb-enterprise --namespace default \
  --set-string envFromSecret=influxdb-license \
  --set-string data.service.type=NodePort \
  --set-string meta.service.type=NodePort \
  --set data.service.nodePort=30086 \
  --set meta.service.nodePort=30091  

[alespour]

LGTM