Proposal for Working Group: Zero-Knowledge Technology

[igorsyl]

Following @blocks8's instructions.

TODO
Objective & Scope - why is the group being created, what is the problem it’s addressing, what is it trying to achieve, is there anything that is explicitly out-of-scope for the group, etc.
Deliverables - what should the group be bringing back to the community once completed
Timeline - when is the group expected to have it’s deliverables complete
Lead - who will be responsible for leading the group and ensuring it completes its designated assignment
Additional Context - Any additional context that might be important for the group including previous conversations on the topic, dependencies on or with other work going on, a special update cadence, etc

[igorsyl]

Closing in consideration for: #482