feat(weaver): move proof verification in corda from workflow to contract

[sandeepnRES]

Is your feature request related to a problem? Please describe.
A code running in workflow of corda may not be trusted to be run by all parties involved. Currently proof verification in weaver data sharing of corda interop app, happens in workflow, and each node does it independently and stores the response independently. Also add multiple parties while recording ExternalState (currently only caller is added), so that the data is shared among multiple parties

Describe the solution you'd like
Proof verification logic should move to contracts, and there should be a transaction involving the same proof verification contract and all the parties wanting to store the remote data to write external state, so that all parties are in consensus whether to record the state or not.

[sandeepnRES]

Resolved with #2453