Add lbaasv2 extension to Neutron for REST refactor

Change-Id: I9f4b9e1f151281d4a467b3b90980a32529a78334
Co-Authored-By: Brandon Logan <brandon.logan@rackspace.com>
Services split, pass 2

- Nuke more services code, killing some refs in vmware plugin
- Vmware plugin foreign key relationships are temporary disabled
- Vmware unit tests are temporarily disabled
- Remove router insertion test, as its only user is going away
- Add thin service plugin shims
- Temporarily disable model sync test

Post services-split, existing neutron.conf configurations may contain
references to in-tree plugin classes.  Add thin shims so that those configs
will continue to work.

Change-Id: I5dd26def685bcc643e35badc23885afc6240ae94
Prettify tox output for functional tests

Change I6a079ad introduced some magic to enable showing test output
as the test run. Do the same for *-functional tests too, by reusing
the default testenv

Change-Id: I6d1ede1c66e7b62c68449224f274417a5d66c12f
Merge "Add lbaasv2 extension to Neutron for REST refactor"
Merge "Prettify tox output for functional tests"
Merge "Services split, pass 2"
Move classes out of l3_agent.py

The file l3_agent.py has become too large.  This patch is a simple
pure refactor to move some of the functionality in to other files
where things aren't too tangled up.  There is no functional change
with this patch and I avoided gratuitous other fixups in this patch in
order to make it easier to review.

I plan to follow up on the new l3_dvr and l3_agent_router modules with
more restructuring in the near future.

Partially-Implements: bp restructure-l3-agent

Change-Id: I3529fe4146c50c940f41eb26d0b5efc5870b3af9
Merge "Move classes out of l3_agent.py"