Add "reason" option to "tctl wf cancel"

[tsurdilo]

Currently "tctl wf cancel" does not have a reason option, please add it. Should be similar to "tctl wf terminate" which has it

tctl wf terminate -h NAME: tctl workflow terminate - terminate a new workflow execution

USAGE: tctl workflow terminate [command options] [arguments...]

OPTIONS: --workflow_id value, --wid value, -w value WorkflowId --run_id value, --rid value, -r value RunId --reason value, --re value The reason you want to terminate the workflow

Thanks!

[tsurdilo]

Related API Issue: https://github.com/temporalio/api/issues/144

[feedmeapples]

not yet part of go SDK as of https://github.com/temporalio/sdk-go/commit/8651550973088f27f678118f997839fb1bb9e62f

[darewreck54]

@tsurdilo Is there any update on this being addressed