[gnome-builder] snippets: add xml header snippet

[Christian Hergert <chergert src gnome org>]

commit 1b2c4028c8a2793f13ebffd31c354721481d7e3a
Author: Christian Hergert <christian hergert me>
Date:   Wed Jan 7 13:35:12 2015 -0800

    snippets: add xml header snippet

 src/resources/gnome-builder.gresource.xml |    1 +
 src/resources/snippets/xml.snippets       |    3 +++
 2 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/src/resources/gnome-builder.gresource.xml b/src/resources/gnome-builder.gresource.xml
index 2c046a5..89ace69 100644
--- a/src/resources/gnome-builder.gresource.xml
+++ b/src/resources/gnome-builder.gresource.xml
@@ -21,6 +21,7 @@
     <file>snippets/c-sharp.snippets</file>
     <file>snippets/python.snippets</file>
     <file>snippets/vala.snippets</file>
+    <file>snippets/xml.snippets</file>
 
     <file>ui/gb-command-bar.ui</file>
     <file>ui/gb-command-bar-item.ui</file>
diff --git a/src/resources/snippets/xml.snippets b/src/resources/snippets/xml.snippets
new file mode 100644
index 0000000..f69a216
--- /dev/null
+++ b/src/resources/snippets/xml.snippets
@@ -0,0 +1,3 @@
+snippet xml
+       <?xml version="1.0"?>
+       $0