Adding missing QT macros for QMetaType (#6857)

Adding missing QT macros for QMetaType
https://doc.qt.io/qt-6/qmetatype.html

Author: bjornblissing

cfg/qt.cfg

@@ -5335,7 +5335,11 @@
   <define name="Q_DECLARE_INTERFACE(ClassName,Identifier)" value=""/>
   <define name="Q_DECLARE_LOGGING_CATEGORY(name)" value="extern const QLoggingCategory &amp;name();"/>
   <define name="Q_DECLARE_OPERATORS_FOR_FLAGS(x)" value=""/>
-  <define name="Q_DECLARE_METATYPE(x)" value=""/>
+  <define name="Q_DECLARE_ASSOCIATIVE_CONTAINER_METATYPE(Container)" value=""/>
+  <define name="Q_DECLARE_METATYPE(Type)" value=""/>
+  <define name="Q_DECLARE_OPAQUE_POINTER(PointerType)" value="QT_BEGIN_NAMESPACE namespace QtPrivate { template &lt;&gt; struct IsPointerDeclaredOpaque&lt;PointerType&gt;: std::true_type {};} QT_END_NAMESPACE"/>
+  <define name="Q_DECLARE_SEQUENTIAL_CONTAINER_METATYPE(Container)" value=""/>
+  <define name="Q_DECLARE_SMART_POINTER_METATYPE(SmartPointer)" value=""/>
   <define name="Q_DECLARE_BUILTIN_METATYPE(TYPE, NAME)" value=""/>
   <define name="Q_DECLARE_PRIVATE(Class)" value="inline Class##Private* d_func() { return reinterpret_cast&lt;Class##Private*&gt;(qGetPtrHelper(d_ptr)); } inline const Class##Private d_func() const { return reinterpret_cast&lt;const Class##Private *&gt;(qGetPtrHelper(d_ptr)); } friend class Class##Private;"/>
   <define name="Q_DECLARE_PRIVATE_D(Dptr, Class)" value="inline Class##Private* d_func() { return reinterpret_cast&lt;Class##Private *&gt;(qGetPtrHelper(Dptr)); } inline const Class##Private* d_func() const { return reinterpret_cast&lt;const Class##Private *&gt;(qGetPtrHelper(Dptr)); } friend class Class##Private;"/>