This lets the user configure a per-domain certificate validation policy

fix #3366

fix #3354

fix #3362

fix #3346

Signed-off-by: Maxime “pep” Buquet <pep@bouah.net>

fix #3311

Remove build packages from docker image by using multistage Dockerfile.

Instead, don’t create the library at all if not needed.

fix #3360

fix #3359

If a user manually does a NAMES query, the result were interpreted as a user
list, which is wrong. And with the special * argument, this would even cause
a crash.

Fix #3357

fix #3356

Because that’s what is typically done on other deamons, and we don’t want to
suprise users.

fix #3351

See https://github.com/randombit/botan/issues/1558