Add API gateway conformance tests

[AmaliMatharaarachchi]

Problem

Conformance test setup is failing for apk gateway. If we are adhering to gateway spec, their Conformance test should pass. Currently eventhough we support these CRDs, they are not supporting some gateway spec scenarios listed in https://gateway-api.sigs.k8s.io/guides/simple-gateway/.

Solution

https://docs.google.com/document/d/1fwDWKK_yZ3TXfdcA3vSX4Kg_plcg-JBYoobAiwyudtY/edit#heading=h.35yjoemxqx92

Affected Component

Adapter, Enforcer, router

Version

No response

Implementation

• [x] support gateway class test cases
• [x] support gateway test cases
• [x] Add status, condition support
• [x] Add gateway address support
• [x] Add dynamically deploying and deleting gateway for gateway CRs
• [x] Add reference grant
• [x] support httproute (without API CR)
• [ ] support httproute test cases

Related Issues

No response

Suggested Labels

No response