net-mgmt/netdata: Update to newest upstream release (v1.11.0)
This release has fundamental changes on config-file management.

The stock config files (templates) are now co-existing in
    ${LOCALBASE}/lib/netdata/*
For customizing and using them they must be compied into
    ${LOCALBASE}/etc/netdata/*

More of changes/bugfixes:
https://github.com/netdata/netdata/blob/v1.11.0/CHANGELOG.md

Sponsored by: The FreeBSD Foundation