Change --volume behavior to add instead of replace mounts
Change --volume behavior to add instead of replace mounts

Signed-off-by: Andy Neff <5babd806bea5d8f34b8c226bad96916df274a833@visionsystemsinc.com>

schmunk42/compose,hoogenm/compose,shin-/compose,dnephin/compose,vdemeester/compose,jrabbit/compose,schmunk42/compose,hoogenm/compose,shin-/compose,funkyfuture/docker-compose,funkyfuture/docker-compose,dnephin/compose,jrabbit/compose,thaJeztah/compose,thaJeztah/compose,vdemeester/compose