All the yang files from SO committed to IM

Signed-off-by: velandy <rajesh.velandy@riftio.com>
diff --git a/models/yang/ietf-network.tailf.yang b/models/yang/ietf-network.tailf.yang
new file mode 100644
index 0000000..f531f65
--- /dev/null
+++ b/models/yang/ietf-network.tailf.yang
@@ -0,0 +1,27 @@
+
+/*
+ * NO RW COPYRIGHT
+ *
+ */
+
+module ietf-network-annotation
+{
+  namespace "urn:ietf:params:xml:ns:yang:ietf-network";
+  prefix "ietf-network-ann";
+
+  import tailf-common {
+    prefix tailf;
+  }
+
+  import ietf-network {
+    prefix nd;
+  }
+
+  tailf:annotate "/nd:network" {
+      tailf:callpoint rw_callpoint;
+  }
+
+  tailf:annotate "/nd:network/nd:server-provided" {
+      tailf:callpoint rw_callpoint;
+  }
+}