Refactor Vagrantfile
Refactor Vagrantfile

Closes https://github.com/dfarrell07/vagrant-opendaylight/issues/32

Signed-off-by: srisankethu <82a3e4e4a1a98803797f621c835ed7bd2bc21754@research.iiit.ac.in>

dfarrell07/vagrant-opendaylight,dfarrell07/vagrant-opendaylight