net/krakend-ce: New port

KrakenD is an extensible, ultra-high performance API Gateway that helps
you effortlessly adopt microservices and secure communications. It is
easy to operate and scales out without a single point of
failure. KrakenD Community Edition (or KrakenD-CE) is the open-source
distribution of KrakenD.

https://github.com/krakend/krakend-ce/

Sponsored by: The FreeBSD Foundation