SWE-24 keep transaction variable

- we need to have the transaction locally so we can pass its members to our API to cancel payment
- added outlet for cancel button

SynchronyFinancial/SynchronyFinancial WatchKit Extension/TransactionDetailsInterfaceController.swift

@@ -14,7 +14,9 @@ class TransactionDetailsInterfaceController: WKInterfaceController {
     @IBOutlet var dateLabel: WKInterfaceLabel!
     @IBOutlet var amountLabel: WKInterfaceLabel!
     @IBOutlet var cancelButton: WKInterfaceButton!
+    var transaction: Transaction?
     var account: Account?
+
     override func awake(withContext context: Any?) {
         super.awake(withContext: context)
 
@@ -29,13 +31,16 @@ class TransactionDetailsInterfaceController: WKInterfaceController {
         }
 
         setTitle("Dismiss")
+        self.transaction = transaction
         account = acct
         transactionName.setText(merchant)
         dateLabel.setText("Date: \(DateFormatter.localizedString(from: date, dateStyle: .short, timeStyle: .none))")
         amountLabel.setText(String(format: "Amount: $%.2f", amount))
         cancelButton.setHidden(!transaction.isModifiable)
     }
 
+    @IBAction func cancelButtonTapped() {
+    }
     override func willActivate() {
         // This method is called when watch view controller is about to be visible to user
         super.willActivate()