OIP-15: Add ETH to the Treasury

Introduce ETH bonds as a way of accumulating ETH for the Treasury, which we see as the logical next step towards our goal of becoming a decentralized currency.

Proposal -Add a new bond type - ETH bonds -Target 5% of Treasury risk free value (RFV) -Example: If Treasury RFV is 19 million, we would aim to accumulate $950,000 of ETH -Aim to reach this target over a period of 45-60 days (bonds are not exact science, so we define a range)

Important Notes -ETH would be assigned a risk free value of 0, meaning we wouldn’t mint against it -OHM will no longer be backed by just 1 unit of risk free value ($1), but also by the proportional amount of ETH in the treasury. If this proposal passes, you can visualize the new backing of OHM as 1 OHM = $1 + 0.xx ETH (+ a fraction of any other asset we hold in the Treasury)

Additional context, explanation and discussion of this proposal can be found on the forum:

https://forum.olympusdao.finance/d/67-oip-15-add-eth-to-the-treasury