Add swamp.finance curve vaults (aave, ren, atricrypto)

Koge already has these curve vaults, but the APRs are much higher from Swamp Finance. Therefore, it would be great for Koge to have these higher APR vaults. Note that swamp vaults have a 0.1% deposit fee.

Koge APY / Swamp Finance Yearly (as of August 13, 2021): aave (aka DAI-USDC-USDT): 17.32% / 46.89% atricrypto (aka USD-BTC-ETH): 48% / 121.79% ren (aka wBTC-renBTC): 13.25% / 40.68%