ipfs-cluster: Add initial version

This patch adds an initial version of my IPFS-cluster role to the
infrastructure repository. It's not completely figured out yet. This
should be reviewed by some IPFS pro down the line.

The experimental setup, went down after starting to scan local networks
for peers. This resulted in learning about the `IPFS_PROFILE` variable
and how important it is, to set it to `server` before deploying in
hosted environments.