Allow to create AIPs using local content

Currently, we sync the "current" folder (the one we use to run "vagrant up") using "/vagrant" as path in the virtual machine.

Changing this path to /home/local-sync (or any other name), would allow users to put their own transfers on the same folder than the playbooks, and process them, beacause /home is configured as the default transfer source in the storage service

Start with the Vagrant configuration used by `vagrant up` and trace how the current folder is mounted as `/vagrant`, then inspect the storage service's default transfer source and the playbooks that process it. Done means local transfers can share the mounted folder with the playbooks and are processed from the new path without breaking the existing deployment flow.

Written by the indexing model from the issue text.