add rescanfrom

src/mainwindow.cpp

@@ -1246,7 +1246,6 @@ void MainWindow::payHushURI(QString uri, QString myAddr) {
     }
 }
 
-
 void MainWindow::importPrivKey() {
     QDialog d(this);
     Ui_PrivKey pui;

src/privkey.ui

@@ -31,6 +31,13 @@
      </property>
     </widget>
    </item>
+   <item>
+    <widget class="QLineEdit" name="rescanfrom">
+     <property name="text">
+      <string notr="true">1600000</string>
+     </property>
+    </widget>
+   </item>
    <item row="2" column="0">
     <widget class="QDialogButtonBox" name="buttonBox">
      <property name="orientation">