Add a JSON parser

This is the third and final stage of the JSON parser.  It parses lexical tokens
performing grammar validation and creating the final QObject representation.  It
uses a recursive decent parser.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

json-parser.h

@@ -0,0 +1,22 @@
+/*
+ * JSON Parser 
+ *
+ * Copyright IBM, Corp. 2009
+ *
+ * Authors:
+ *  Anthony Liguori   <aliguori@us.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
+ * See the COPYING.LIB file in the top-level directory.
+ *
+ */
+
+#ifndef QEMU_JSON_PARSER_H
+#define QEMU_JSON_PARSER_H
+
+#include "qemu-common.h"
+#include "qlist.h"
+
+QObject *json_parser_parse(QList *tokens, va_list *ap);
+
+#endif