Add initial Packer definitions

Copy over the Packer definitions from ONOS since we've been asked to set
up the builders the same way initially.

Change-Id: I8c6e3cad05e4d4341ac58498d36810dac06f687f
Signed-off-by: Linux Foundation Administrators <collab-it+onlab@linuxfoundation.org>
diff --git a/packer/provision/rh-user_data.sh b/packer/provision/rh-user_data.sh
new file mode 100644
index 0000000..6bddb24
--- /dev/null
+++ b/packer/provision/rh-user_data.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+# vi: ts=4 sw=4 sts=4 et :
+
+/bin/sed -i 's/ requiretty/ !requiretty/' /etc/sudoers;