OpenDaylight plugin for brahmaputra release

OpenDaylight plugin for brahmaputra release

Include new version of fuel-plugin-opendaylight.
Changes in this version:

 - Support MOS 8.0.
 - Move ODL installation and configuration
   to main phase of deployment.
 - L3 traffic managed by ODL possible when vxlan
   tunneling is used.
 - Include snapshot of OpenDaylight Beryllium,
   stable version not available at this moment.
 - Get rid of hardcoded configuration related to specific ODL version.
   Now plugin is more elastic and should support a broader
   number of ODL versions.
 - odl_network_scheme function overrided standard network scheme
   so custom network templates are not required.
 - ODL is no longer patched to use br-floating bridge

JIRA: FUEL-58

Change-Id: Ie3542e285a064c37d1edb6751c4853a5e7594478
Signed-off-by: Michal Skalski <mskalski@mirantis.com>