Fixed Karaf Distribution Archetype add dependent bundles

This patch adds the copy-dependencies execution so that bundles are copied
to /system in local distribution for projects using this archetype so that
the final package can be used offline or without local developer .m2 repository.

Change-Id: I4fa661611eeb5e3c0e466fe748e9453264e0695d
Signed-off-by: Mathieu Lemay <mlemay@inocybe.com>
Merge "Fixed Karaf Distribution Archetype add dependent bundles"