Debugger: Split into core library and application.

- Add subfolder src/kits/debugger which contains the debugger's core
  functionality and lower layers. Correspondingly add headers/private/debugger
  for shared headers to be used by clients such as the Debugger application
  and eventual remote_debug_server. Adjust various files to account for
  differences as a result of the split and moves.
- Add libdebugger.so to minimal Jamfile.

headers/private/debugger/model/ThreadInfo.h

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2009, Ingo Weinhold, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef THREAD_INFO_H
+#define THREAD_INFO_H
+
+#include <OS.h>
+#include <String.h>
+
+
+class ThreadInfo {
+public:
+								ThreadInfo();
+								ThreadInfo(const ThreadInfo& other);
+								ThreadInfo(team_id team, thread_id thread,
+									const BString& name);
+
+			void				SetTo(team_id team, thread_id thread,
+									const BString& name);
+
+			team_id				TeamID() const		{ return fTeam; }
+			thread_id			ThreadID() const	{ return fThread; }
+			const char*			Name() const	{ return fName.String(); }
+
+private:
+			team_id				fTeam;
+			thread_id			fThread;
+			BString				fName;
+};
+
+
+#endif	// THREAD_INFO_H