Added Vagrant config files that will create a build VM

Added Vagrant config files that will create a build VM

As described in the tools/vagrant/README.md, Vagrant can use the
configuration provided in this commit to provision a build VM for building
IoTivity.

Change-Id: Ic2ae5a7bfc9e4274aa76be99a0807517f89c94b8
Signed-off-by: William Dieter <william.r.dieter@intel.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/88
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Patrick Lankswert <patrick.lankswert@intel.com>
(cherry picked from commit 3b864d1ab9656a2570888b64b8384b406e9212c6)
Reviewed-on: https://gerrit.iotivity.org/gerrit/383
Reviewed-by: Sudarshan Prasad <sudarshan.prasad@intel.com>