Implement example validation

[mikeee]

This PR creates an action workflow that is to validate the examples similar to that recently pushed to the go-sdk repo.

• Each example will run in a parallel job
• Mechanical Markdown is the basis for validating the expected output

TODOs / Follow up issue creations:

• A non-default resiliency policy is required for the grpc servers to register successfully.
• Speed up runs with caching

[mikeee]

@yaron2 Please could I steal a moment of your time when possible to review with a goal of merging this, it assists with validation going forward.

[yaron2]

@yaron2 Please could I steal a moment of your time when possible to review with a goal of merging this, it assists with validation going forward.

Great PR! I'll carve out time for this