This patch adds the ability for osbash to understand boot and
snapshot commands in config/scripts.* files.
The syntax for running scripts within the VM remains:
<dircode> <script_name>
For the new commands, it is:
boot
snapshot "Description for snapshot"
The Vagrant-side of the code will simply ignore these commands.
get_script_paths_from_config has been removed and merged into the
execution routine for osbash and Vagrant, respectively.
This changeset puts only the functionality in place. It is going to be
used by a subsequent patch.
Implements: blueprint openstack-training-labs
Change-Id: I2213125715e4cdf4cd2b4f501f3c216e2474b465
06fe3a3e84