Kernel: Embed a Metadata notes entry in coredumps

Author: https://github.com/linusg
Commit: d84b96bddc
Pull-request: https://github.com/SerenityOS/serenity/pull/4661
Reviewed-by: https://github.com/alimpfard
Reviewed-by: https://github.com/awesomekling

Kernel/CoreDump.h

@@ -57,6 +57,7 @@ private:
     ByteBuffer create_notes_process_data() const;
     ByteBuffer create_notes_threads_data() const;
     ByteBuffer create_notes_regions_data() const;
+    ByteBuffer create_notes_metadata_data() const;
 
     NonnullRefPtr<Process> m_process;
     NonnullRefPtr<FileDescription> m_fd;