AIP #57 - Add a USD0++ Cauldron

Add a USD0++ cauldron.

Cauldron Parameters Interest Rate: 8.5%

Borrow Fee: 0.5%

Minimum Collateralization Ratio (MCR): 86%

Liquidation Fee: 7.5%

Initial Top-Up:

1 million $MIM initially, with potential scaling up to 2 million depending on volume and liquidity.