codigo actual del servidor, con avances de joan

source_code/lib/custom/select_payment_list.dart

@@ -0,0 +1,14 @@
+
+class PaymentType{
+  String key,value;
+  PaymentType(this.key, this.value);
+}
+class PaymentOption{
+static List<PaymentType>  getList(){
+    List<PaymentType> list = [];
+    list.add(PaymentType("select", "Select"));
+    list.add(PaymentType("offline", "Offline"));
+    list.add(PaymentType("online", "Online"));
+    return list;
+  }
+}