QmlDesigner: Implement effect maker view

Initial basic logic for a view and simple functionality to be extended.
The view is hidden by default during development and enabled via an env var.

Task-number: QDS-10401
Change-Id: I5c2e1e20aca6c53c1ed273136ee6204145f15def
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@qt.io>
Reviewed-by: Qt CI Patch Build Bot <ci_patchbuild_bot@qt.io>
Reviewed-by: Mahmoud Badri <mahmoud.badri@qt.io>
Reviewed-by: Amr Elsayed <amr.elsayed@qt.io>

src/plugins/qmldesigner/components/effectmaker/effectnode.cpp

@@ -0,0 +1,16 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#include "effectnode.h"
+
+namespace QmlDesigner {
+
+EffectNode::EffectNode(const QString &name)
+    : m_name(name) {}
+
+QString EffectNode::name() const
+{
+    return m_name;
+}
+
+} // namespace QmlDesigner