Change registry Apis signature to return info interface

[ketsiambaku]

Detailed Description
[In-depth description of the changes made to the interfaces, specifying new fields, removed fields, or modified data structures]

Change in signature on the following WorkflowRegistry methods:
GetWorkflowFunc
GetRegisteredWorkflows

the two methods are combined into one where GetRegisteredWorkflows now returns an RegistryInfo interface. The info interface exposes methods to retrieve the function and workflow info.

The same goes for the ActivityRegistry methods:
GetActivityFunc
GetRegisteredActivities

Impact Analysis

• Backward Compatibility: [Analysis of backward compatibility]
• Forward Compatibility: [Analysis of forward compatibility]

Testing Plan

• Unit Tests: [Do we have unit test covering the change?] Yes
• Persistence Tests: [If the change is related to a data type which is persisted, do we have persistence tests covering the change?]
• Integration Tests: [Do we have integration test covering the change?]
• Compatibility Tests: [Have we done tests to test the backward and forward compatibility?]

Rollout Plan

• What is the rollout plan?
• Does the order of deployment matter?
• Is it safe to rollback? Does the order of rollback matter? Safe to roll back. No required order
• Is there a kill switch to mitigate the impact immediately?