Generate simple-reproduction script

[ldoktor]

It'd be nice to be able to reproduce the environment, maybe even the actual set-of-tests. Let's log all the changes we perform in setup and log it somewhere in the report so we can just copy&paste it on other machines to get the same/similar outcome. In case of a reboot let's notify the user and split it into multiple phases.

Use comments to make the script readable and some steps might be just comments. For example:

# Provision the Fedora-33 via beaker

# Install pbench
wget ...
dnf install -y ...
...

# Apply profile TunedLibvirt
wget ....qcow2
...
virsh create ...