Initial push of Neutron interface

Two bundles included in this:
-networkconfig.neutron (contains JAXB annotated classes, *CRUD
interfaces with an implementation [for storing objects], and
Aware interfaces [for other bundles to register services])
-networkconfig.neutron.northbound (contains the JAXRS annotated
classes along with JAXB annotated request specific classes)

Commit amended to refactor .internal package to separate
implementation bundle and package

Commit re-amended to clean up issues in commons/opendaylight
and distribution/opendaylight poms

Commit re-re-amended to fix conflicts on rebase (I hope)

Getting close to just abandoning the change and starting over

Commit re-re-re-amended to fix parent issues in pom

amend to remove leaked CRs in distribution pom

- Cleanup of some duplicates artifact and of commons-net in modules
dependencies, anyway they get in via the commons.opendaylight

Change-Id: I15724c55e843237c010dfaec1e1e523560174f51
Signed-off-by: Ryan Moats <rmoats@us.ibm.com>