*/*: rename CHEESESHOP to PYPI in MASTER_SITES

PR:			267994
Differential revision:	D37518
Approved by:		bapt

Remove WWW entries moved into port Makefiles

Commit b7f05445c00f has added WWW entries to port Makefiles based on
WWW: lines in pkg-descr files.

This commit removes the WWW: lines of moved-over URLs from these
pkg-descr files.

Approved by:		portmgr (tcberner)

Add WWW entries to port Makefiles

It has been common practice to have one or more URLs at the end of the
ports' pkg-descr files, one per line and prefixed with "WWW:". These
URLs should point at a project website or other relevant resources.

Access to these URLs required processing of the pkg-descr files, and
they have often become stale over time. If more than one such URL was
present in a pkg-descr file, only the first one was tarnsfered into
the port INDEX, but for many ports only the last line did contain the
port specific URL to further information.

There have been several proposals to make a project URL available as
a macro in the ports' Makefiles, over time.

One more small cleanup, forgotten yesterday.
Reported by:	lwhsu

Remove # $FreeBSD$ from Makefiles.

graphics/py-img2pdf: Update to 0.3.5

* Drop Python 2.7 support because it was removed with this version.

Changelog:

https://gitlab.mister-muffin.de/josch/img2pdf/blob/0.3.5/CHANGES.rst

Convert the tree to use PY_PILLOW

With hat:	portmgr
Originally submitted by:	kai

graphics/py-pillow: Update to 7.0.0

* Repo-Copy the Pillow 6.2.2 release to graphics/py-pillow6 to retain
  backwards compatibility for Python 2 consumers as the Pillow 7.0.0 release
  dropped the support for Python 2.

* Apply conditional statements to use either Pillow 7.x or Pillow 6.x for
  consumers that can be built for Python 2 or newer.

* Exceptions are ports that can be built only for either Python 2 or
  Python 3.  For the first case, consumers are just assigned to the
  repo-copied graphics/py-pillow6.

* Also remove Pillow from BUILD_DEPENDS of math/py-PyWavelets as it is not
  listed in setup.py as a build dependency [1] and relax the version

New port: graphics/py-img2pdf

This Python package provides lossless conversion of raster images to PDF. You
should use img2pdf if your priorities are (in this order):

1. "always lossless": The image embedded in the PDF will always have the exact
   same color information for every pixel as the input.

2. "small": If possible, the difference in filesize between the input image and
   the output PDF will only be the overhead of the PDF container itself.

3. "fast": If possible, the input image is just pasted into the PDF document
   as-is without any CPU hungry re-encoding of the pixel data.

Conventional conversion software (like ImageMagick) would either:

1. Not be lossless because lossy re-encoding to JPEG.
2. Not be small because using wasteful flate encoding of raw pixel data.
3. Not be fast because input data gets re-encoded.

Another advantage of not having to re-encode the input (in most common
situations) is, that img2pdf is able to handle much larger input than other
software, because the raw pixel data never has to be loaded into memory.

WWW: https://gitlab.mister-muffin.de/josch/img2pdf