Validators (such as rpki-client) ingest ROAs and emit Validated ROA Payloads (VRPs).
RTR servers exclusively deal with ingesting VRPs and emitting VRPs via RTR.
* Possibility to read a slurm file (rfc8416) from an http/https endpoint or from a file
* Filters prefixes and adds new ones contained in the configuration
* Can output a new rpki.json which contains the updated prefixes and sign it (other GoRTR can consome from it)
