20:19 makc 

Add new port graphics/libpgf (prerequisite for digikam update):

The Progressive Graphics File (PGF) is an efficient image file format that is
based on a fast, discrete wavelet transform with progressive coding features.
PGF can be used for lossless and lossy compression.

WWW: http://www.libpgf.org

Submitted by:	Jason E. Hale <bsdkaffee at gmail.com> via area51 commit