Add ovs flows to skydive

Skydive does not receive information about ovs flows
Fixed some other issue:
- Add logic to use skydive with odl
- Useless config folder.
- Missing auth parm in analyzer conf.
- Set internal endpoint for connection to keystone.
- Remove stderr which consumes a lot of disk space in the host.

Change-Id: I4f7287f7453a6c5b6b8d77d746281b175d421bed
Closes-Bug: #1711336