Adding support of WMware Workstation in the Vagrant file

Adding support for VMware Workstation will be useful as it is already used for nested virtualization with XEN for VMI usecases.

References: 
- https://developer.hashicorp.com/vagrant/docs/providers/vmware
- https://github.com/KVM-VMI/kvm-vmi/blob/master/vagrant/Vagrantfile
- https://kvm-vmi.github.io/kvm-vmi/master/setup.html#option-1-vagrant-virtual-machine-based-setup