Add Metis Chain support for MAI Bridging

Proposal: Add Metis Chain support for MAI Bridging

--MAI and Stargate-- MAI is currently listed on Stargate on Optimism, Arbitrum, Polygon, Ethereum, Avalanche, and BNB.

MAI's deployment on Stargate enjoys liquidity support from QiDao. This reduces the cost of capital for Stargate to 0% for maintaining liquidity for MAI.

--Motivation-- Currently, the only major stablecoin project on Metis is QiDao. It represents the largest onchain use case for the $METIS token.

Given the delisting of Multichain from MAI's crosschain bridging program, there is a need for a new canonical bridging into Metis.

--Specifications-- MAI's address on Metis: 0xdFA46478F9e5EA86d57387849598dbFB2e964b02 The address can be confirmed via QiDao's docs: https://docs.mai.finance/functions/smart-contract-addresses

QiDao will support this deployment with protocol-controlled liquidity.