Adding Buck file for ONOS karaf branding

Change-Id: I7971ba6b8f62d5596dff617376845e7901f63cca
diff --git a/tools/package/branding/BUCK b/tools/package/branding/BUCK
new file mode 100644
index 0000000..3a2e916
--- /dev/null
+++ b/tools/package/branding/BUCK
@@ -0,0 +1,2 @@
+osgi_jar()
+# Really... that's it
\ No newline at end of file