This patch adds support for setting incoming_chmod and
outgoing_chmod parameters to the swift::storage::all
definition.
This is useful because leaving incoming_chmod and outgoing_chmod
set to their default values causes deprecation warnings. Users
of swift::storage::all may want to start setting the new
values and thereby avoid these warning messages.
Change-Id: I627ab2255087b0ebc2d3ddc9cd4a7a7d254abb65