Introduces a new MidoNet Neutron NB API bundle.

It introduces a new module / OSGi bundle for Neutron NB API of
OpenDaylight. This patch just provides a dummy implementation of
MidoNet network CRUD operations.
Removed the implementation for INeutronNetworkCRUD.
Removed the implementation for INeutronNetworkCRUD.
Merge branch 'dev/tomohiko/odl_neutron_network/20131210' of github.com:midokura/odp-controller into dev/tomohiko/odl_neutron_network/20131210
Populates a network UUID on creation.
Merge pull request #2 from midokura/dev/tomohiko/odl_neutron_network/20131210

Introduces a new MidoNet Neutron NB API bundle.