Add a QFloat datatype

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/qobject.h b/qobject.h
index 76f669f..67b03d0 100644
--- a/qobject.h
+++ b/qobject.h
@@ -41,6 +41,7 @@
     QTYPE_QSTRING,
     QTYPE_QDICT,
     QTYPE_QLIST,
+    QTYPE_QFLOAT,
 } qtype_code;
 
 struct QObject;