sysutils/moosefs-* update to 2.0.72-1

The update to 2.0.72-1 includes splitting the sysutils/moosefs-master
port into several new ports to achieve better modularization. This
matches the approach upstream has taken with their own FreeBSD packages
which they were distributing via their own pkgng repository.

Further details are provided in the UPDATING entry.

Upstream MooseFS team is now taking maintainership of these ports.

PR: 199342
PR: 199343
PR: 199344
PR: 199345
PR: 199346
PR: 199347
PR: 199348
PR: 199349