SIP-10 New iPool containing USDT, USDC, DAI - requested by DFI.money/YFII

Gov forum link - https://gov.swerve.community/t/sip-10-new-ipool-containing-usdt-usdc-dai-requested-by-dfi-money-yfii/

DFI.Money/YFII has approached the Swerve community about the formation of a new iPool containing USDT, USDC and DAI. These are the most used 3 stablecoins in DeFi, and make up the majority of demand for stablecoins. The reason they have requested this is that YFII do not currently accept TUSD as a deposit currency therefore cannot currently use the default Swerve pool since it would expose them to TUSD risk.

Those familiar with the yPool on curve by Yearn finance will have a good understanding of how this would be structured.

This would be a good way to bring more AUM under swerve, currently YFII has 50m AUM that can be brought under swerve with this integration.