Workshop on oracles, VRF, ChainLink and other oracle-based patterns.

[moul]

TODO: list existing issues, PRs, grants, discussions.
TODO: plan a workshop in january.

cc @gnolang/berty @deelawn

[deelawn]

I will put together a presentation proposing the architecture for a general oracle/off-chain agent based system. I'll also create the calendar event for when we are back in January.