vault addCollateral proposal updates

[0xpatrickdev]

Reproducable Bundles:

I am working off of this: https://github.com/Agoric/agoric-sdk/compare/master...0xpatrickdev:agoric-sdk:pc/statom-vault-proposal

• node v16.18.1, go1.20.2 darwin/arm64, agoric-sdk#9d4eaad

What was added

• removed economicCommitteeCreatorFacet and contractGovenor from oracle permit: https://github.com/Agoric/agoric-sdk/commit/b414246ceb9770f3a4c1a840ca1d19c1c8ed32f4 (see #5)

• updated README instructions to suggest single proposal (see #6)

• use STATOM1 in proposal for now (see #1, #10)

• update oracle operator addresses (decentral-devnet-config + pc address) (see #3)

• docs for oracle flow, and REPL validation

What is missing

• I attempted to tackle #7, restoreRef for priceAggregator and scaledPriceAuthority, but couldn't quite figure this out. I am not sure yet what needs to be changed so we have access to restoreRef in add-collateral-core.js.

Testing Status

I included ibc/toystatom in all the places that have ibc/toyatom in cosmic-swingset/Makefile, and this enables me to access test statom1 in the repl and other wallets.

I am (seemingly) able to submit oracles prices using the agops cli, but am getting a maxDebtFor called before a collateral quote was available error when opening an stATOM vault. This error occurs when storedCollateralQuote is undefined, so it seems I may be missing a step. Oracle prices must be sent from 2-3 addresses/operators, before the price registers. Once I included this in the flow, things are working as expected 🎉

[dckc]

This is good progress. Several of the fixes look good.

If they were in their own PR(s), I would approve them, but I'm not sure what to do with this whole PR.