Implement BSwap api

[crazyguitar]

Hi,

I Implemented some BSwap APIs. The following snippet is how I tested.

'use strict'

const Binance = require('./node-binance-api');
const binance = new Binance().options({
    APIKEY: process.env.APIKEY,
    APISECRET: process.env.APISECRET,
})

async function _() {
  try {
    console.log(await binance.bswapPools())
    console.log(await binance.bswapLiquidity({ timestamp: Date.now() }))
    console.log(await binance.bswapLiquidityOps({ timestamp: Date.now() }))
    console.log(await binance.bswapQuote({ timestamp: Date.now(), quoteAsset: 'USDT', baseAsset: 'BUSD', quoteQty: 100.0 }))
    console.log(await binance.bswapHistory({ timestamp: Date.now() }))
  } catch (e) {
    console.log(e)
  }
}

_()
  .then(() => {})
  .catch(e => console.log(e))

Could someone help review? I am researching BSwap currently. I need these apis.

thanks,
chang-ning

[jaggedsoft]

Thank you very much for your contribution.

Help wanted to support crazyguitar in finishing this