A previous commit added authentication token checks. Auth tokens are replaced with session tokens, which can (and should) expire. This commit validates sessions, which now allows access to gated operations.
The very beginnings, with a very basic application architecture, for a music playing server on a headless system.
This also adds my new Flow library, which I'll be wanting to use in a variety of places.
Co-authored-by: Savanni D'Gerinel <savanni@luminescent-dreams.com>
Reviewed-on: savanni/tools#17