This task will update the feature support table for 3.1.

Present link: https://docs.redhat.com/en/documentation/red_hat_openshift_service_mesh/3.0/html/release_notes/ossm-release-notes-feature-support-tables 

Updates by section, including foot notes where needed:

3.2 Sail Operator APIs

• ZTunnel is now TP

3.3 Istio deployment and lifecycle

• Dual-Stack IPv4/IPv6 is now GA*

*Generally available support is provided for Dual-Stack IPv4/IPv6 on x86 environments only. For non-x86 environments, the feature remains Technology Preview.

3.5 Kubernetes Gateway API

• Kubernetes Gateway API custom resource definitions (CRDs) is now GA*
• [New feature] Gateway Inference Extensions is TP

(replace current footnote) The use of Kubernetes Gateway API requires custom resource definitions (CRDs). These CRDs are present by default and generally available on OCP 4.19 and later releases. OpenShift Container Platform 4.18 and earlier releases does not include or provide support for these CRDs.

3.6.1 Encryption and certificate management

• [New feature] Kubernetes ClusterTrustBundles is DP

3.10 Istio ambient mode (Sidecareless) data plane

Istio ambient mode - all features is now TP