Add all files needed to bring up VM and run agaric.com locally

Vagrantfile

@@ -0,0 +1,19 @@
+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+#
+# The absolute path to the root directory of the project.
+ENV['DRUPALVM_PROJECT_ROOT'] = "#{__dir__}"
+
+# The relative path from the project root to the VM config directory.
+ENV['DRUPALVM_CONFIG_DIR'] = "provisioning/box"
+
+# The relative path from the project root to the Drupal VM directory.
+ENV['DRUPALVM_DIR'] = "box"
+
+# Pre-configure the IP range if auto-network is available:
+if Vagrant.has_plugin?('vagrant-auto_network')
+  AutoNetwork.default_pool = '192.168.42.0/24'
+end
+
+# Load the real Vagrantfile
+load "#{__dir__}/#{ENV['DRUPALVM_DIR']}/Vagrantfile"