[feat gw-api]support httproute filter type - RequestRedirect

[shuqz]

Description

• add support for httproute filter type - RequestRedirect
• query is not supported since gateway api does not have similar attribute for user to provide this field

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 yaml file

  rules:
    - matches:
        - path:
            type: Exact
            value: /exactPath
      filters:
        - type: RequestRedirect # request redirect cannot be together with backendRefs
          requestRedirect:
            path:
              type: ReplaceFullPath
              replaceFullPath: "/newExactPath"
            statusCode: 301
            scheme: https
    - matches:
        - path:
            type: PathPrefix
            value: /prefixPath
      filters:
        - type: RequestRedirect # request redirect cannot be together with backendRefs
          requestRedirect:
            path:
              type: ReplacePrefixMatch
              replacePrefixMatch: "/newPrefixPath"
            scheme: http
            hostname: "a.example.com"
            port: 90

output screen

shot

• 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 🌟

[shuqz]

/retest

[zac-nixon]

nit: you probably don't need this check as it's just best-effort and if clients want to create re-direct loops they can.

[zac-nixon]

/lgtm

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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