if a port needs 2.x then set MODPY_VERSION=${MODPY_DEFAULT_VERSION_2}.
This commit doesn't change any versions currently used; it may be that
some ports have MODPY_DEFAULT_VERSION_2 but don't require it, those
should be cleaned up in the course of updating ports where possible.
Python module ports providing py3-* packages should still use
FLAVOR=python3 so that we don't have a mixture of dependencies some
using ${MODPY_FLAVOR} and others not.
The program will take image filenames from commandline arguments and output
a PDF file with them embedded into it. If the input image is a JPEG or
JPEG2000 file, it will be included as-is without any processing. If it is
in any other format, the image will be included as zip-encoded RGB.
As a result, this tool will be able to lossless wrap any image into a
PDF container while performing better (in terms of quality/filesize ratio)
than existing tools in case the input image is a JPEG or JPEG2000 file.
