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/debug_info/StackFrameDebugInfo.h

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2009, Ingo Weinhold, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef STACK_FRAME_DEBUG_INFO_H
+#define STACK_FRAME_DEBUG_INFO_H
+
+
+#include <Referenceable.h>
+
+#include "Types.h"
+
+
+class ArrayIndexPath;
+class ArrayType;
+class Architecture;
+class BaseType;
+class DataMember;
+class StackFrame;
+class Type;
+class ValueLocation;
+
+
+class StackFrameDebugInfo : public BReferenceable {
+public:
+								StackFrameDebugInfo();
+	virtual						~StackFrameDebugInfo();
+};
+
+
+#endif	// STACK_FRAME_DEBUG_INFO_H