DAP: Add CMake debug to the debug panel

This commit introduces the capability to initiate
CMake Debug sessions directly from the debug panel
in the QtCretor.

Change-Id: I00245e0e14aded378e881c4049cdc41dd1fbd00e
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: hjk <hjk@qt.io>

src/plugins/debugger/debuggermainwindow.cpp

@@ -785,6 +785,11 @@ QString Perspective::id() const
     return d->m_id;
 }
 
+QString Perspective::parentPerspectiveId() const
+{
+    return d->m_parentPerspectiveId;
+}
+
 QString Perspective::name() const
 {
     return d->m_name;