feat: Adding GNO, USDT, and the respective uniswap v2 pairs, to cover…#6

lgahdl wants to merge 2 commits intoluizhatem/poc-offline-modebleu/cowprotocol-services:luizhatem/poc-offline-modefrom

luizhatem/cow-539-add-additional-tokens-usdt-gno-and-uniswapv2pairsbleu/cowprotocol-services:luizhatem/cow-539-add-additional-tokens-usdt-gno-and-uniswapv2pairsCopy head branch name to clipboard