Log message:
Switch BUILD_DEPENDS to TOOL_DEPENDS as had been done in pkgsrc-wip.

Log message:
Add ArgyllCMS 3.0.2

ArgyllCMS is an ICC compatible color management system, available
as Open Source. It supports accurate ICC profile creation for
scanners, cameras and film recorders, and calibration and profiling
of displays and RGB & CMYK printers. Device Link can be created
with a wide variety of advanced options, including specialized
Video calibration standards and 3dLuts.