Add GNO: Gnosis Token

[bh2smith]

• [x] I understand that token listing is not required to use the Uniswap Interface with a token.
• [x] I understand that filing an issue or adding liquidity does not guarantee addition to the Uniswap default token list.
• [x] I will not ping the Discord about this listing request.

  {
    "name": "Gnosis Token",
    "address": "0x5ffd62d3c3ee2e81c00a7b9079fb248e7df024a8",
    "symbol": "GNO",
    "decimals": 18,
    "chainId": 137,
    "logoURI": "https://raw.githubusercontent.com/trustwallet/assets/master/blockchains/ethereum/assets/0x6810e776880C02933D47DB1b9fc05908e5386b96/logo.png"
  }

Uniswap V2 Pair Address of Token: https://polygonscan.com/address/0x48b01cece13f9a038768a349fcb5c2a55c03abdb

Link to the official homepage of token: https://gnosis.io/ Link to CoinMarketCap or CoinGecko page of token: https://www.coingecko.com/en/coins/gnosis