vdsm-tool: reorgenize module configurers.

configurators are different from other vdsm tool exposed
entities since they have their own lifecycle (defined
by ModuleConfigure) and they deserve their own directory.

this happens now since configurator is getting messy
and it is time to split it into different
ModuleConfigure file. In addition more are expected
to join soon.

Change-Id: Ic79d400760e425f6f4863b6a33c69aa14fb0c623
Signed-off-by: Mooli Tayer <mtayer@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/31400
Reviewed-by: Dan Kenigsberg <danken@redhat.com>