feat: add blockchain status getter to all daemons

lib/plugins/wallet/bitgo/bitgo.js

@@ -164,6 +164,11 @@ function supportsBatching (cryptoCode) {
     .then(() => SUPPORTS_BATCHING)
 }
 
+function checkBlockchainStatus (cryptoCode) {
+  return checkCryptoCode(cryptoCode)
+    .then(() => Promise.resolve('ready'))
+}
+
 module.exports = {
   NAME,
   balance,
@@ -172,5 +177,6 @@ module.exports = {
   getStatus,
   newFunding,
   cryptoNetwork,
-  supportsBatching
+  supportsBatching,
+  checkBlockchainStatus
 }