Karaf features for OVSDB modules.

1. Individual Features for library, schema wrappers and plugin.
2. Northbound and Openstack features will be added as soon as controller AD-SAL karaf features are resolved.
3. Updated proper <name> tag in each of the pom files as the default karaf behaviour is to print artifact-id in bundle:list.

Sample logs after kar:install : https://gist.github.com/4845f27a79cf74dd7431

Change-Id: I2180c8dc37a4cc06d0ab9a53b03162594439ac85
Signed-off-by: Madhu Venugopal <mavenugo@gmail.com>