This patch updates the testing of the neutron classifier
repository to be zuulv3 compliant. Changes include:
- Added lower-constraints.txt file.
- Added clarifying comments to requirements.txt including
neutron-lib-current update.
- Removed playbooks/legacy yaml files.
- Modified coverage package version.
- Added to testenv, testenv:dev in tox.ini
This patch is part of the neutron-sibling-setup
as documented in [1]. Changes were also based on zuulv3
opencontrail patch [2] as well as updates made to
x/vmware-nsx project.[3]
[1] https://etherpad.openstack.org/p/neutron-sibling-setup
[2] https://review.opendev.org/#/c/624782/
[3] https://review.opendev.org/#/c/670134/
Change-Id: I46ac45d97a5af24ae234f11952d6883cd3088ff7