Colabfold setup_databases for GPU and other settings a proteinfold pre-script

[keiran-rowell-unsw]

This is the canonical set up script:

https://github.com/sokrypton/ColabFold/blob/main/setup_databases.sh

[keiran-rowell-unsw]

If a workflow.nf can be repurposed for something an admin in a long running tmux or screen session then there's some setup burden remove.

Could focus on this as GPU setup missing, Tom suggests moving into a new workflow can be a NextFlow matching