Workflow update client API refactor

[Quinn-With-Two-Ns]

This PR makes multiple changes to the client experience around update:

• Merge UpdateWorkflowWithOptions and UpdateWorkflow to a single api
• Makes WaitForStage a required parameter in update
• Create a Go SDK enum for update lifecyle
• Updated start update polling to poll until stage reached or ACCEPTED. If more polling needed, switches to result polling.

closes https://github.com/temporalio/sdk-go/issues/1414 closes https://github.com/temporalio/sdk-go/issues/1449 closes https://github.com/temporalio/sdk-go/issues/1411

since this has multiple breaking changes feature tests are expected to fail until I make a separate branch