Python: add a python kit aspect

Change-Id: If7aaa52025ec5834a44e9196548fbcc7456c89a8
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/plugins/python/pythonkitaspect.h

@@ -0,0 +1,20 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#pragma once
+
+#include <projectexplorer/runconfigurationaspects.h>
+
+namespace ProjectExplorer { class Kit; }
+
+namespace Python {
+
+class PythonKitAspect
+{
+public:
+    static std::optional<ProjectExplorer::Interpreter> python(const ProjectExplorer::Kit *kit);
+    static void setPython(ProjectExplorer::Kit *k, const QString &interpreterId);
+    static Utils::Id id();
+};
+
+}; // namespace Python