[feat gw-api]support source ip and handle grpc filter

[shuqz]

Description

• emit exception for grpc route filter (we do not support any type except ExtensionsRef)
• support source ip with listener rule configuration CRD, below are expected behaviors
  • when indexes are not specified, it will be added to all rule conditions under same grpcRouteRule/httpRouteRule -> this means customer can also try to have separate route and rule crd for each source ip if they think it is more clear for them to manage
  • when indexes are provided, source ip config will be added to the specified indexes (but we recommend customer to maintain the order of rule because it can apply to wrong rule if order changes. to keep minimal effort, they can always put those rules need source ip at beginning of manifest)
  • we recommend to use one rule configuration to one rule, and since there will be multiple matches in a rule, customer can provide matchIndexes so we know which match to apply source ip to

Checklist

• Added tests that cover your change (if possible)
• Added/modified documentation as required (such as the README.md, or the docs directory)
• Manually tested

Test case with indexes specified and not specified

---
apiVersion: gateway.k8s.aws/v1beta1
kind: ListenerRuleConfiguration
metadata:
  name: custom-rule-config-source-ip
  namespace: sample-gateway-alb
spec:
  conditions:
    - field: source-ip
      matchIndexes: [0,1]
      sourceIPConfig:
        values:
          - 10.0.0.0/6
          - 10.0.0.0/5
---
apiVersion: gateway.k8s.aws/v1beta1
kind: ListenerRuleConfiguration
metadata:
  name: custom-rule-config-source-ip-2
  namespace: sample-gateway-alb
spec:
  conditions: =======> NOT PROVIDE MATCHINDEXES, will apply to all conditions
    - field: source-ip
      sourceIPConfig:
        values:
          - 10.0.0.0/8
---
apiVersion: gateway.networking.k8s.io/v1
kind: HTTPRoute
metadata:
  name: http-app-source-ip
  namespace: sample-gateway-alb
spec:
  parentRefs:
    - name: sample-gw-alb
      port: 90
  rules:
    - backendRefs:
        - name: echoserver
          port: 80
      filters:
        - type: ExtensionRef
          extensionRef:
            group: "gateway.k8s.aws"
            kind: "ListenerRuleConfiguration"
            name: "custom-rule-config-source-ip"
      matches:
        - path: # Path Pattern
            type: Exact
            value: /pathExactMatch
          queryParams: # Query String
            - name: "user"
              value: "john"
          method: GET # HTTP Request Method
        - path: # Regex path match
            type: RegularExpression
            value: "/firstRule/some?/users"
    - backendRefs:
        - name: echoserver
          port: 80
      filters:
        - type: ExtensionRef
          extensionRef:
            group: "gateway.k8s.aws"
            kind: "ListenerRuleConfiguration"
            name: "custom-rule-config-source-ip-2"
      matches:
        - path: # Path Pattern
            type: Exact
            value: /secondRulePath
          method: POST # HTTP Request Method
        - path: # Regex path match
            type: RegularExpression
            value: "/secondRule/some?/users"
        - path:
            type: "PathPrefix"
            value: "/secondRule"

• Made sure the title of the PR is a good description that can go into the release notes

BONUS POINTS checklist: complete for good vibes and maybe prizes?! 🤯

• Backfilled missing tests for code in same general area 🎉
• Refactored something and made the world a better place 🌟

[zac-nixon]

can you add an e2e test that makes sure the rule is correctly materialized 🙏

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: shuqz, zac-nixon

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[shraddhabang]

/lgtm

[k8s-ci-robot]

New changes are detected. LGTM label has been removed.