Create user access denied route

lib/models/friend_status.dart

@@ -0,0 +1,27 @@
+import 'package:meta/meta.dart';
+
+/// Simple friendship status
+///
+/// @author Pierre HUBERT
+
+class FriendStatus {
+  final int userID;
+  final bool areFriend;
+  final bool sentRequest;
+  final bool receivedRequest;
+  final bool following;
+
+  const FriendStatus({
+    @required this.userID,
+    @required this.areFriend,
+    @required this.sentRequest,
+    @required this.receivedRequest,
+    @required this.following,
+  })  : assert(userID != null),
+        assert(areFriend != null),
+        assert(sentRequest != null),
+        assert(receivedRequest != null),
+        assert(following != null);
+
+  bool get noRequestExchanged => !areFriend && !sentRequest && !receivedRequest;
+}