- Due to an issue with VPC routers (CLOUDSTACK-8935) we are not able to destroy networks before destroying the routers
- Added a forcestop/destroy routers inside the tearDown to make sure it passes. The issue will be addressed in a separate PR
- Make sure the routers list is cleaned after destroy_routers() is called
- Populate routers list after the router is recreated
- That's not the place to fix the default routes for redundant VPC,
- Adding tests to cover PF and FW in isolated networks
* Will still add some tests for egress as well