Adding utils package to outOfProcess and remoteFileHandler

As part of http://gerrit.ovirt.org/11423 we added utils package to
outOfProcess modules. oop uses remoteFileHandler to run external
processes, each external process expose modules and functions. To allow
running function from utils package with outOfProcess, we need to
register utils module to crabRPCServer that handles the requests.

The utils.py module name is vdsm.utils (as its under vdsm package).
To avoid register all vdsm module to the crabRPCServer we use custom
name and it allows an access by oop.utils.func

Change-Id: I59d258b58a18aa187eb2b723aa018e22432d61d3
Signed-off-by: Yaniv Bronhaim <ybronhei@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/14325
Reviewed-by: Dan Kenigsberg <danken@redhat.com>