Intent of from_v1_to_v2

All 3 exact tests in this concept. Every test is marked by where it enters the hierarchy.

go.temporal.io/ 3 tests
- server/ 3 tests
  - common/ 3 tests
    
    worker_versioning/ 3 tests
    
    TestFindDeploymentVersionForWorkflowID_PartialRamp/ 3 tests
    
    go.temporal.io/server/common/worker_versioning/TestFindDeploymentVersionForWorkflowID_PartialRamp/from_unversioned_to_v2 Inherited from_unversioned_to_v2
    
    go.temporal.io/server/common/worker_versioning/TestFindDeploymentVersionForWorkflowID_PartialRamp/from_v1_to_unversioned Inherited from_v1_to_unversioned
    
    go.temporal.io/server/common/worker_versioning/TestFindDeploymentVersionForWorkflowID_PartialRamp/from_v1_to_v2 Introduced here