message: add new mai4pool
diff: "virtualOracleId": "USDT",
  "poolId": 14,
  "chainId": 1284
  + },
  + {
  + "name": "stellaswap-mai4pool",
  + "address": "0xA0AA99F71033378864Ed6E499eb03612264e319a",
  + "pool": "0x7FbE3126C03444D43fC403626ec81E3e809E6b46",
  + "decimals": "1e18",
  + "virtualOracleId": "USDT",
  + "poolId": 16,
  + "chainId": 1284
  }
  ]
  