Allow ONOS to be built against locally built ONOS YANG Tools.

Change-Id: If4373245be901cae0f620aadcbea557fea35c4e7
diff --git a/WORKSPACE b/WORKSPACE
index 1e83aaa..dc16834 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -4,7 +4,7 @@
 
 check_bazel_version()
 
-load("//tools/build/bazel:local_jar.bzl", "local_atomix", "local_jar")
+load("//tools/build/bazel:local_jar.bzl", "local_atomix", "local_jar", "local_yang_tools")
 
 # Use this to build against locally built arbitrary 3rd party artifacts
 #local_jar(
@@ -18,6 +18,12 @@
 #    version = "3.0.8-SNAPSHOT",
 #)
 
+# Use this to build against locally built YANG tools
+#local_yang_tools(
+#    path = "/Users/andrea/onos-yang-tools",
+#    version = "2.6-SNAPSHOT",
+#)
+
 load("//tools/build/bazel:generate_workspace.bzl", "generated_maven_jars")
 
 generated_maven_jars()