Log Message:
graphics/tiff: Update to 4.4.0

Upstream does not provide NEWS.  Skimming over 1300 lines of
ChangeLog, this release contains mostly bufixes, speed improvemnents,
and other minor improvements.

This commit drops 5 patches for CVEs.  These patches all appear to
have been taken from the upstream repo.

One CVE remains:
  https://nvd.nist.gov/vuln/detail/CVE-2018-10126
  http://bugzilla.maptools.org/show_bug.cgi?id=2786
  https://gitlab.com/libtiff/libtiff/-/issues/128