This allows for registering external components for Prosody as needed,
and enables us to create templated Spectrum services for each supported
protocol.
Configuration has been updated for Biboumi to allow for automated
registration against Prosody as well.
This contains the culmination of work done privately for a few months,
and is intended to be a solid basis for other peoples' experimentations
with setting up single-node, home-server setups using Fedora CoreOS.