• Update to 4.3.0
• Add LICENSE_FILE
• Create directory for sockets and pidfile
• Update pkg-descr with a more descriptive text from website

PR: 244657
Submitted by: yds <yds@Necessitu.de>
Approved by: tremere@cainites.net (maintainer), ehaupt (mentor)
Changelog: https://blog.powerdns.com/2020/03/03/powerdns-recursor-4-3-0-released/