added cargo files

PinePods-0.8.2/mobile/lib/entities/queue.dart

@@ -0,0 +1,31 @@
+// Copyright 2020 Ben Hills and the project contributors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+/// The current persistable queue.
+class Queue {
+  List<String> guids = <String>[];
+
+  Queue({
+    required this.guids,
+  });
+
+  Map<String, dynamic> toMap() {
+    return <String, dynamic>{
+      'q': guids,
+    };
+  }
+
+  static Queue fromMap(int key, Map<String, dynamic> guids) {
+    var g = guids['q'] as List<dynamic>?;
+    var result = <String>[];
+
+    if (g != null) {
+      result = g.map((dynamic e) => e.toString()).toList();
+    }
+
+    return Queue(
+      guids: result,
+    );
+  }
+}