As part of open sourcing the software product, we should consider that
loyalty points are not the best language. Switching to "credits" makes
sense from a lot of points of view.
At the same time, this change allows an achitectural change towards
slots. Slots allow daemon resources to get booked based on the HW ratio
configured in the daemon config.
seperated non vm related services into general protofile
shared common proto for types like Empty
rename proto packages
top level crate export for convenient imports
