Components being registered typically require a full restart of the
service, as a simple configuration reload does not handle on-the-fly
activation of any new components or modules.
Fortunately, a separate method exists for doing so, and our
`prosody-component-register` will now use this method in registering
components without a full restart of the underlying service.
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.
