WIP: Pull in zfs_acl.c zfs_dir.c zfs_log.c zfs_vfsops.c zfs_vnops.c zfs_znode.c
from FreeBSD (files were previously based on MacZFS).
Remove all evidence of ZOL "zfs_sb_t", and fix prototypes.
Remove old MacZFS "z_phys" from znode_t, and replace with sa_lookup.
WIP: Pass 'compile' of wrappers, stop at 'linking'.
WIP: Start vnode wrapper calls for FreeBSD calling.

* Add zfs_vnops_osx.c zfs_vnops_osx_lib.c to Makefile
*