Add Key Finance Tokens

Key finance is a liquidity solution for GMX stakers. GMX stakers can wrap their token with key finance and enjoy boosted APR.

GMXkey: https://arbiscan.io/address/0xc5369c88440AB1FC842bCc60d3d087Bd459f20e4

esGMXkey: https://arbiscan.io/address/0x3a924611895F8484194C9a791fceFb6fC07ddb85

MPkey: https://arbiscan.io/address/0x40a03B30D0c4D9e5E71164e041EC28CEe6dD9b36