AIP - 103: Deploy a Transmuter instance for EURC on Base and activate stEUR on the chain

Hello, This is a proposal to: - deploy a Transmuter with the right to mint EURA on Base and with EURC as a collateral - activate the stEUR savings product on Base - seed a EURA/USDA liquidity pool on the chain ## Context The protocol has a Transmuter instance on Base for USDA with USDC as a collateral. It allows anyone to swap USDC and in a single transaction get into the stUSD yield product of the protocol. EURC has gained quite a lot of momentum recently on Base, notably thanks to a...