Changes to implement option #2 for the port matching

[bowei]

Example:

apiVersion: policy.networking.k8s.io/v1alpha2
kind: ClusterNetworkPolicy
metadata:
  name: port1
spec:
  tier: Admin
  priority: 0
  subject:
    namespaces:
      matchLabels:
        kubernetes.io/metadata.name: sensitive-ns
  ingress:
    - action: Deny
      name: select-all-deny-all
      from:
      - pods:
          namespaceSelector:
            matchLabels: {}
          podSelector:
            matchLabels: {}
      protocols:
        tcp:
          - destinationPort:
              number: 8080
              # flags: [syn] # future extension example
          - destinationPort:
              range:
                start: 8080
                end: 9090
        udp:
          - destinationPort:
              number: 8080
          - destinationPort:
              number: 9090
        destinationNamedPort:
          - name: http
          - name: monitoring

[netlify]

✅ Deploy Preview for kubernetes-sigs-network-policy-api ready!

Name	Link
🔨 Latest commit	f5ea69a
🔍 Latest deploy log	https://app.netlify.com/projects/kubernetes-sigs-network-policy-api/deploys/69240479ffba1a0008efe9eb
😎 Deploy Preview	https://deploy-preview-342--kubernetes-sigs-network-policy-api.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify project configuration.

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: bowei
Once this PR has been reviewed and has the lgtm label, please assign aojea for approval. For more information see the Code Review Process.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

• OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[bowei]

I am going to update this to match the NPEP.

[bowei]

/hold

[k8s-ci-robot]

@bowei: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-network-policy-api-crd-e2e	f5ea69a	link	true	/test pull-network-policy-api-crd-e2e
pull-network-policy-api-verify	f5ea69a	link	true	/test pull-network-policy-api-verify

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository. I understand the commands that are listed here.