After the repo split into kolla and kolla-ansible the Vagrant
development environment was broken.
With this change Vagrant will run from kolla-ansible and kolla
repo is expected to be in the same directory level so the
bootstrap can include it inside the VM.
- Modified the bootstrap code to copy both repos into the VM.
- Added one configuration token to specify kolla-ansible location
inside the VM.
- Updated the docs.
Change-Id: I6b56822d50472f8eda6fc60f69196d3c9b8b6cf8
Closes-Bug: 1693847