Log Message:
pick: Update to 3.0.0

Patch provided by Jenz Guenther with some adjustments by myself.

pkgsrc changes:
 - Adjust to configure and inject INSTALL*, PREFIX and MANDIR variables
 - Patch configure and Makefile to honor INSTALL_MAN and MANDIR
 - Add support for test

Changes:
# v3.0.0 - 2019-02-27
 - pick is now available as a package on NetBSD.
   (ec5b83b)
   (Jenz Guenther)
 - Usage of autoconf and automake has been replaced in favor of a shell-script
   and plain Makefile(s). The process of building pick remains the same.
   (970c5f4)
   (Anton Lindqvist)