Moved YANG GUI up the source tree.

Change-Id: I0398f9a0b963942b011acbd74478b053ddad703a
diff --git a/apps/yang-gui/BUCK b/apps/yang-gui/BUCK
new file mode 100644
index 0000000..a3470f8
--- /dev/null
+++ b/apps/yang-gui/BUCK
@@ -0,0 +1,18 @@
+COMPILE_DEPS = [
+    '//lib:CORE_DEPS',
+    '//lib:onos-yang-runtime',
+]
+
+osgi_jar_with_tests (
+    deps = COMPILE_DEPS,
+    resources_root = 'src/main/resources',
+    resources = glob(['src/main/resources/**']),
+)
+
+onos_app (
+    title = 'YANG Runtime GUI',
+    category = 'Utility',
+    url = 'http://onosproject.org',
+    description = 'YANG Runtime GUI application for visualization of registered YANG models.',
+    required_apps = [ 'org.onosproject.yang' ],
+)