[TASK] Migrate example blueprints to workspace

[drewstone]

• Migrate over examples
• Add an actual blueprint manager contract so that we can also test the blueprint jobs
• Proposal for reorganization of examples. Should be presentable for docs and easy to navigate
• Integrate operator key ECDSA verification as is done in here

For operator key verification example we are testing the correctness of the operator's ECDSA key in the blueprint. We need to ensure that the key provided when a service is requested is the same one that the operator is using (in the same format) as the one they can also make transactions from.

1. Store operator address onRequest
2. Add a function that returns successfully if the caller is an operator and fails otherwise.
3. Write a test calling this function from an operator and not an operator to test success and failure case.