Bug 1334 - Change the Typed Classes in Open_vSwitch and hardware_vtep schema

- Fixed IT tests.
- Address review comments: removed some commented out lines
- Modified schema files to use Set<Long> instead of Set<Integer>
- Modified user files to use new schema

Change-Id: I471d5c69d9b6f03df97fabbae5ab743b4b9772a5
Signed-off-by: Sam Hague <shague@redhat.com>