Add Istio Operator NetworkPolicies

Package Owner Merge Request

Package Changes

https://repo1.dso.mil/platform-one/big-bang/apps/core/istio-operator/-/merge_requests/10

https://repo1.dso.mil/platform-one/big-bang/apps/core/istio-operator/-/tags/1.8.4-bb.2

Adds networkpolicies for istio operator.

Additional Details

No known issues.

Closes #432