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/value/values/IntegerValue.h

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2009, Ingo Weinhold, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef INTEGER_VALUE_H
+#define INTEGER_VALUE_H
+
+
+#include "Value.h"
+
+
+class IntegerValue : public Value {
+public:
+								IntegerValue(const BVariant& value);
+	virtual						~IntegerValue();
+
+			bool				IsSigned() const;
+
+			int64				ToInt64() const
+									{ return fValue.ToInt64(); }
+			uint64				ToUInt64() const
+									{ return fValue.ToUInt64(); }
+			const BVariant&		GetValue() const
+									{ return fValue; }
+
+	virtual	bool				ToString(BString& _string) const;
+	virtual	bool				ToVariant(BVariant& _value) const;
+
+	virtual	bool				operator==(const Value& other) const;
+
+protected:
+			BVariant			fValue;
+};
+
+
+#endif	// INTEGER_VALUE_H