Support as-is for scheduled workflow ID

[cretz]

Describe the solution you'd like

This was added a while back in API at temporalio/api#357 but never to our programmatic interfaces. Just need this new field on schedule policy.

Per-SDK Tickets

• Go - TODO
• Java - TODO
• Core - N/A
• TypeScript - TODO
• Python - TODO
• .NET - TODO
• Ruby - TODO
• PHP - TODO
• Temporal CLI - [Feature Request] Support as-is for scheduled workflow ID cli#910