Add scripts.* config files

The configuration files added by this changeset list scripts that are
executed for specific setups.

There is one each for osbash and Vagrant installations, one each for
Ubuntu and Fedora, and one for each node (controller, network, compute).

Partial-Bug: 1312764
Implements: blueprint openstack-training-labs
Change-Id: Ifff55cb55fd2d2f9c603c51acc74bbeda5fea38d
Merge "Add scripts.* config files"