flutter: Add Platform_dart and regenerate bindings

src/flutter/generated/KDDockWidgetsBindings/dart/ffi/Controllers_wrapper.cpp

@@ -0,0 +1,30 @@
+/*
+  This file is part of KDDockWidgets.
+
+  SPDX-FileCopyrightText: 2019-2022 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
+  Author: Sérgio Martins <sergio.martins@kdab.com>
+
+  SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only
+
+  Contact KDAB at <info@kdab.com> for commercial licensing options.
+*/
+#include "Controllers_wrapper.h"
+
+
+#include <QDebug>
+
+
+namespace Dartagnan {
+
+typedef int (*CleanupCallback)(void *thisPtr);
+static CleanupCallback s_cleanupCallback = nullptr;
+
+template<typename T>
+struct ValueWrapper
+{
+    T value;
+};
+
+}
+extern "C" {
+}