Temporal schedule support

[mintybayleaf]

Changes

Added support for Temporal's Schedule feature to this SDK. My company has been using these wrappers we wrote locally for quite a while and they have been battle tested. I thought it would be good to give back to the community.

Temporal Java SDK

Schedule How-To

• Implement core builders for Schedule, SchedulePolicy, ScheduleSpec, ScheduleState, ScheduleActionStartWorkflow, and ScheduleOptions in internal/schedule.clj
• Implement ScheduleClient and associated operations in client/schedule.clj
• Move grpc related stub code to internal/grpc.clj so both clients can share
• Move workflow options back to internal/workflow.clj so both clients can share
• Move client options to client/options.clj
• Update test/types.clj with new Schedule related builder tests
• Create test/schedule.clj with new Schedule related operation tests
• Update the doc/clients.md to include ScheduleClient documentation

Review Checklist

• Performed a self-review of my code
• Added thorough tests
• Run the documentation examples in the REPL locally against Temporal

Issue ticket number and link

N/A

[ghaskins]

Ty!