[vala] glib-2.0: Add uuid_string_* symbols

[Rico Tzschichholz <ricotz src gnome org>]

commit 4cab2c262b03b10ffebe2254586be57723bfe475
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Thu Feb 9 15:09:49 2017 +0100

    glib-2.0: Add uuid_string_* symbols

 vapi/glib-2.0.vapi |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/vapi/glib-2.0.vapi b/vapi/glib-2.0.vapi
index db96e28..02c18eb 100644
--- a/vapi/glib-2.0.vapi
+++ b/vapi/glib-2.0.vapi
@@ -2956,6 +2956,13 @@ namespace GLib {
                public static double double_range (double begin, double end);
        }
 
+       namespace Uuid {
+               [Version (since = "2.52")]
+               public static bool string_is_valid (string str);
+               [Version (since = "2.52")]
+               public static string string_random ();
+       }
+
        /* Miscellaneous Utility Functions */
 
        namespace Environment {