Presentation processing event

[Artemkaaas]

As a verifier application, I would show a loader when the proof is received and is in processing (because it takes several seconds to query ledgers). Is there a way to detect that right now?

If I find the proper place, AFJ moves the presentation record to the presentation-received state only after the proof is fully processed. We can make one of the changes in order to achieve desirable behavior?

• Add a new extra state (for instance PresentationProcessing which is not part of correspondent Aries RFC) into the PresentationExchange record and set this state right at the beginning of the Presentation processing function.
• Set the PresentationReceived state at the beginning of the function to process the presentation. The behavior will differ from other message-processing functions, so we will need to update them as well. Is it breaking change?