Full history decode utility

Describe the solution you'd like

Users need to decode all payloads in a history object. This could be exposed as a payload visitor or as a more specific decode-history method. That decision is up to the architect that accepts this issue.

Today if a user is in Go, they can use to visit payloads and decrypt them: https://pkg.go.dev/go.temporal.io/api/proxy#VisitPayloads. This is present/exposed in no other SDK I am aware of. EDIT: Except Ruby :-)

Per-SDK Tickets

• Go - TODO (though https://pkg.go.dev/go.temporal.io/api/proxy already has it, just need to make it more visible in SDK itself)
• Java - TODO
• Core - N/A
• TypeScript - TODO
• Python - TODO
• .NET - TODO
• Ruby - TODO (though https://ruby.temporal.io/Temporalio/Api/PayloadVisitor.html already has it, just need to make it more visible in the SDK itself)
• PHP - TODO
• Temporal CLI - TODO (yes, a tool to do this given a remote codec would be nice)

Start with the existing Go proxy.VisitPayloads and Ruby Temporalio::Api::PayloadVisitor references, then review the per-SDK checklist and the unresolved choice between a payload visitor and a decode-history method. Done requires an accepted API direction and a defined implementation or exposure plan across the applicable SDKs and possibly the Temporal CLI.