Collection of small roles to use mltk to build and install the bwLehrool environment.

Split between:
* mltk-core: just sets the git repository variables, depended by other mltk related roles
* mltk-bwlp: builds and installs the bwlp mltk target
* mltk-nvidia: builds and installed the nvidia as mltk addon

Main playbook:
* setup-bwlp.yml