feature(cryptoicon): create cryptoicon component

app/components/CryptoIcon/CryptoIcon.js

@@ -0,0 +1,17 @@
+import React from 'react'
+import PropTypes from 'prop-types'
+import { FaBitcoin } from 'react-icons/lib/fa'
+// import Litecoin from '../resources/'
+
+const CryptoIcon = ({ currency }) => {
+  switch(currency) {
+    case 'btc':
+      return (<FaBitcoin />)
+      break
+    case 'ltc':
+      return <span>LTC</span>
+      break
+    default:
+      return <span></span>
+  }
+}