Add shared folders and video VBox guest additions

Open-webOS-DCO-1.0-Signed-off-by: Keith Derrick <keith.derrick@palm.com>

Change-Id: Ia83cfea2f1bb633baaf8ae75e04db67b9aa3e10f
Reviewed-on: http://g2g.palm.com/1505
Reviewed-by: Keith Derrick <keith.derrick@palm.com>
Reviewed-by: Build Verification
Reviewed-by: Susan Montooth <susan.montooth@palm.com>
Reviewed-by: Steve Lemke <steve.lemke@palm.com>
Tested-by: Steve Lemke <steve.lemke@palm.com>