Add other servers to the KNOT benchmarks
The benchmark at https://www.knot-dns.cz/benchmark/ compares NSD with KNOT. It states that under high load KNOT is slightly betten than NSD, but according to https://gitlab.labs.nic.cz/knot/knot-dns/issues/656 KNOT does not perform name compression. So the benchmark is misleading.
Please add PowerDNS in the benchmarks.