Dob/delta: Initial draft LIP submission for Livepeer Delta.

[dob]

This is the initial PR for the set of LIPs that incorporates the Livepeer Delta decentralization upgrade. It includes Livepeer treasury, contribution percentage, social conventions, and a placeholder for security committee governance.

Notes to reviewers

• As LIP #'s aren't assigned until this PR is merged, the references between files will need to be updated.
• There is a bundle LIP - treasury_bundle - which describes the creation of the treasury and social conventions for interacting with the treasury. Review this first.
• There is a treasury_technical_spec in the assets folder, which was included as a standalone doc because of its rigor and technical depth. If you believe it should be included in the LIP itself, we can do so.
• The treasury_contribution_percentage LIP can be considered on its own but depends on the bundle passing. Review this after the bundle.
• The governable_security_committee LIP is a placeholder for a fast follow LIP, but we felt it important to include it in the spirit of Delta's intentions.

Pre-reqs for moving these LIPs from Draft to Last Call would be further community discussion in the forums, technical review of the candidate implementation and spec.

[dob]

Thanks. What I'll do is address the open micro comments and debatable points here in this PR, and then resubmit individual PRs for each LIP.

[dob]

Ok, the PRs are now broken up into individual PRs for each LIP, and there's two new forum discussion threads. One for the treasury bundle and one for the treasury contribution percentage discussion.

I'll leave this PR open for a bit for reference on the ongoing discussion, but let's move any future updates to the spec or PRs themselves into the individual LIP based PRs, rather than here. cc @victorges @yondonfu

[victorges]

@dob should we close this one?