[vmong5k] make vm deployment idempotent
Currently if one call vmong5k.Provider.init
twice, the VMs will be remove before new ones restarted. This differs from the behaviour of the other provider and should be fixed.
Currently if one call vmong5k.Provider.init
twice, the VMs will be remove before new ones restarted. This differs from the behaviour of the other provider and should be fixed.