v0.3: from eth to different assets and synthetic stablecoin #20
Description
This version will require major research because it is not easy task to switch from primitive architecture with one token on all chains from previous versions to a system with multiple assets with changing prices. Add not conversion to stablecoin with exact price but also overcollateralization.
Position management: add different tokens, change messages structure. Maybe add rebalancing. Do we handle price changes onchain or offchain? We already have our datafeeds, can reuse them.
Offchain: switch from de-facto ETH bridging to real collateral abstraction that takes different tokens from one chain and converts to overcollateralized synthetic stablecoin on another. Will need to think about architecture.
Synthetic stablecoin: nothing changes for ERC20 token, it just turns from ETH to USD. Amount to mint/burn is still received from sgx quotes.