add support for funding

lib/plugins/wallet/bitgo/bitgo.js

@@ -84,10 +84,30 @@ function getStatus (account, toAddress, requested, cryptoCode) {
   })
 }
 
+function newFunding (account, cryptoCode) {
+  return checkCryptoCode(cryptoCode)
+  .then(() => {
+    return getWallet(account)
+    .then(wallet => {
+      return wallet.createAddress()
+      .then(result => {
+        const fundingAddress = result.address
+        return wallet.setLabel({address: fundingAddress, label: 'Funding Address'})
+        .then(() => ({
+          fundingPendingBalance: BN(wallet.wallet.balance),
+          fundingConfirmedBalance: BN(wallet.wallet.confirmedBalance),
+          fundingAddress
+        }))
+      })
+    })
+  })
+}
+
 module.exports = {
   NAME,
   balance,
   sendCoins,
   newAddress,
-  getStatus
+  getStatus,
+  newFunding
 }