Add documentation about bluetooth capabilities on different hardware revisions

[froscon2024]

Its unclear how to add Bluetooth support to the pslab. I have already spend some time and i still do not know for sure how that is done. It looks like v5 added the ability to add bluetooth and this is gone in v6 again. But i am still not sure if this is correct. Some documentation on this topic would be great.
This page where probably everything belongs onto is empty: https://docs.pslab.io/advanced/Readme.html#how-to-add-bluetooth-to-pslab