Add NGINX Gateway Fabric v2.0 conformance report (#3836)

Adding conformance report for the v2.0 NGINX Gateway Fabric release. Now supporting Gateway API v1.3.

Author: sjberman

conformance/reports/v1.3.0/nginx-nginx-gateway-fabric/README.md

@@ -0,0 +1,23 @@
+# Nginx NGINX Gateway Fabric
+
+## Table of Contents
+
+| API channel  | Implementation version                                                      | Mode    | Report                                           |
+|--------------|-----------------------------------------------------------------------------|---------|--------------------------------------------------|
+| experimental | [v2.0.0](https://github.com/nginx/nginx-gateway-fabric/releases/tag/v2.0.0) | default | [v2.0.0 report](./experimental-2.0.0-default-report.yaml) |
+
+## Reproduce
+
+To reproduce results, clone the NGF repository:
+
+```shell
+git clone https://github.com/nginx/nginx-gateway-fabric.git && cd nginx-gateway-fabric/tests
+```
+
+Follow the steps in the [NGINX Gateway Fabric Testing](https://github.com/nginx/nginx-gateway-fabric/blob/main/tests/README.md) document to run the conformance tests. If you are running tests on the `edge` version, then you don't need to build any images. Otherwise, you'll need to check out the specific release tag that you want to test, and then build and load the images onto your cluster, per the steps in the README.
+
+After running, see the conformance report:
+
+```shell
+cat conformance-profile.yaml
+```

conformance/reports/v1.3.0/nginx-nginx-gateway-fabric/experimental-2.0.0-default-report.yaml

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+apiVersion: gateway.networking.k8s.io/v1
+date: "2025-06-05T16:32:34Z"
+gatewayAPIChannel: experimental
+gatewayAPIVersion: v1.3.0
+implementation:
+  contact:
+  - https://github.com/nginx/nginx-gateway-fabric/discussions/new/choose
+  organization: nginx
+  project: nginx-gateway-fabric
+  url: https://github.com/nginx/nginx-gateway-fabric
+  version: v2.0.0
+kind: ConformanceReport
+mode: default
+profiles:
+- core:
+    result: success
+    statistics:
+      Failed: 0
+      Passed: 12
+      Skipped: 0
+  extended:
+    result: success
+    statistics:
+      Failed: 0
+      Passed: 1
+      Skipped: 0
+    supportedFeatures:
+    - GatewayHTTPListenerIsolation
+    - GatewayInfrastructurePropagation
+    - GatewayPort8080
+    unsupportedFeatures:
+    - GatewayAddressEmpty
+    - GatewayStaticAddresses
+  name: GATEWAY-GRPC
+  summary: Core tests succeeded. Extended tests succeeded.
+- core:
+    result: success
+    statistics:
+      Failed: 0
+      Passed: 33
+      Skipped: 0
+  extended:
+    result: success
+    statistics:
+      Failed: 0
+      Passed: 14
+      Skipped: 0
+    supportedFeatures:
+    - GatewayHTTPListenerIsolation
+    - GatewayInfrastructurePropagation
+    - GatewayPort8080
+    - HTTPRouteHostRewrite
+    - HTTPRouteMethodMatching
+    - HTTPRoutePathRedirect
+    - HTTPRoutePathRewrite
+    - HTTPRoutePortRedirect
+    - HTTPRouteQueryParamMatching
+    - HTTPRouteRequestMirror
+    - HTTPRouteRequestMultipleMirrors
+    - HTTPRouteResponseHeaderModification
+    - HTTPRouteSchemeRedirect
+    unsupportedFeatures:
+    - GatewayAddressEmpty
+    - GatewayStaticAddresses
+    - HTTPRouteBackendProtocolH2C
+    - HTTPRouteBackendProtocolWebSocket
+    - HTTPRouteBackendRequestHeaderModification
+    - HTTPRouteBackendTimeout
+    - HTTPRouteDestinationPortMatching
+    - HTTPRouteParentRefPort
+    - HTTPRouteRequestPercentageMirror
+    - HTTPRouteRequestTimeout
+  name: GATEWAY-HTTP
+  summary: Core tests succeeded. Extended tests succeeded.
+- core:
+    result: success
+    statistics:
+      Failed: 0
+      Passed: 11
+      Skipped: 0
+  extended:
+    result: success
+    statistics:
+      Failed: 0
+      Passed: 1
+      Skipped: 0
+    supportedFeatures:
+    - GatewayHTTPListenerIsolation
+    - GatewayInfrastructurePropagation
+    - GatewayPort8080
+    unsupportedFeatures:
+    - GatewayAddressEmpty
+    - GatewayStaticAddresses
+  name: GATEWAY-TLS
+  summary: Core tests succeeded. Extended tests succeeded.
+succeededProvisionalTests:
+- GatewayInfrastructure