Move 'template-pkgbuilds' to 'make-pkgbuildins'.
Add 'list' script.

This script provides useful lists of packages, groups, etc.
Reorganize a bit.

This removes the all-packages and package-repos lists and move the
testing and info-layout files to the research directory.
Remove 'pseudo-dependency-lists'.

This information is now stored in the package info files.
Move the pseudo-package PKGBUILD.in to 'pseudo-packages'.