feat: add batch_time and batched to cash_in_txs

feat: add batched flag to clear tx to send
feat: add batch information to front-end
feat: change transaction sending info on batch sending
fix: batching support function added to all wallet plugins
fix: mock-wallet batching check
feat: send machine information about batchable coins

lib/cash-in/cash-in-tx.js

@@ -120,15 +120,27 @@ function postProcess (r, pi, isBlacklisted, addressReuse, failedWalletScore) {
   if (!cashInLow.isClearToSend(r.dbTx, r.tx)) return Promise.resolve({})
 
   return pi.sendCoins(r.tx)
-    .then(txObj => ({
-      txHash: txObj.txid,
-      fee: txObj.fee,
-      sendConfirmed: true,
-      sendTime: 'now()^',
-      sendPending: false,
-      error: null,
-      errorCode: null
-    }))
+    .then(txObj => {
+      if (txObj.batched) {
+        return {
+          batched: true,
+          batchTime: 'now()^',
+          sendPending: true,
+          error: null,
+          errorCode: null
+        }
+      }
+
+      return {
+        txHash: txObj.txid,
+        fee: txObj.fee,
+        sendConfirmed: true,
+        sendTime: 'now()^',
+        sendPending: false,
+        error: null,
+        errorCode: null
+      }
+    })
     .catch(err => {
     // Important: We don't know what kind of error this is
     // so not safe to assume that funds weren't sent.