[Feature Request] Schedule creation should create tracing span by default

[cretz]

Describe the solution you'd like

When the tracing interceptor is in use, by default creating a schedule should create a span for the schedule and set it on the workflow header if the action is starting a workflow. Users need to be able to opt-out in their tracing interceptor options.

[cretz]

(do not blindly implement as is, see discussion starting with comment https://github.com/temporalio/features/issues/394#issuecomment-1966551344 before proceeding)