No support for HB_ADDRESS/PORT and FABRIC_ADDRESS/PORT

[nkonopinski]

Docker hub states these env variables are available (https://hub.docker.com/_/aerospike) but they are not implemented in this code base and setting them has no affect on the official images. Please add support for them

Docs could use updating too, Dockerhub points to the old archived repo (https://github.com/aerospike/aerospike-server-enterprise.docker/issues) instead of this one.