Add new option to skip some networkpolicys

[qpdpQ]

What this PR does / why we need it:
Also add --skipIAM and --skipZen option to skip install networkpolicy for Zen or IAM
Which issue(s) this PR fixes:
Fixes # https://github.ibm.com/IBMPrivateCloud/roadmap/issues/67945

[qpdpQ]

test log:

~/project/ibm-common-service-operator/cp3-networkpolicy# ./install_networkpolicy.sh -n cs1 --skipIAM --skipZen
# [0] Checking prerequisites ...
-----------------------------------------------------------------------
[✔] oc command available
[✔] oc command logged in as kube:admin
[✔] IBM Common Services found in namespace cs1
# [0] Installing IBM Common Services Network Policies ...
-----------------------------------------------------------------------
[INFO] Using IBM Common Services namespace: cs1
[INFO] Using operators namespace: cs1
[INFO] Using Zen namespace: cs1
[INFO] Using cert-manager namespace: 
[INFO] Using license-service namespace: 
[INFO] Using license-service-reporter namespace: 
[INFO] Using flink namespace: 
[INFO] Using opensearch namespace: 
[INFO] Skipping networkpolicies for IAM services
[INFO] Skipping networkpolicies for Zen services
[INFO] Installing access-to-common-web-ui.yaml ...
networkpolicy.networking.k8s.io/access-to-common-web-ui created
[INFO] Installing access-to-edb-postgres.yaml ...
networkpolicy.networking.k8s.io/access-to-edb-postgres created
[INFO] Installing access-to-icp-mongodb.yaml ...
networkpolicy.networking.k8s.io/access-to-icp-mongodb created
[INFO] Skipping access-to-platform-auth-service.yaml due to skip flags ...
[INFO] Skipping access-to-platform-identity-management.yaml due to skip flags ...
[INFO] Skipping access-to-platform-identity-provider.yaml due to skip flags ...
[INFO] Installing access-to-usage-metering-service.yaml ...
networkpolicy.networking.k8s.io/access-to-ibm-usage-metering-instance created
[INFO] Installing access-to-edb-postgres-webhooks.yaml ...
networkpolicy.networking.k8s.io/access-to-edb-postgres-webhooks created
[INFO] Installing access-to-ibm-common-service-operator.yaml ...
networkpolicy.networking.k8s.io/access-to-ibm-common-service-operator created
[INFO] Skipping access-to-zen-meta-api.yaml due to skip flags ...
[INFO] Installing olm-access-to-bedrock-catalog.yaml ...
networkpolicy.networking.k8s.io/allow-from-openshift-operator-lifecyele-manager created
[INFO] Skipping access-to-edb-postgres.yaml due to skip flags ...
[INFO] Skipping zen-access-to-audit-svc.yaml due to skip flags ...
[INFO] Skipping zen-access-to-nginx.yaml due to skip flags ...
[INFO] Skipping zen-access-to-usermgmt.yaml due to skip flags ...
[INFO] Skipping zen-access-to-zen-core-api.yaml due to skip flags ...
[INFO] Skipping zen-access-to-zen-core.yaml due to skip flags ...
[INFO] Skipping zen-access-to-zen-minio.yaml due to skip flags ...
[INFO] Skipping zen-access-to-zen-volumes.yaml due to skip flags ...
[INFO] Skipping zen-access-to-zen-watchdog.yaml due to skip flags ...
[INFO] Skipping zen-allow-iam-config-job.yaml due to skip flags ...
-----------------------------------------------------------------------
[✔] IBM Common Services NetworkPolicies installation or removal completed at Wed Oct 15 12:31:05 PM PDT 2025 .

[YCShen1010]

/lgtm
Great job, thanks @qpdpQ

[ibm-ci-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: qpdpQ, YCShen1010

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