+ added new command 'pkglist' for listing of packages in format compatible with 'install.dat' file used by the text-mode installer - primarily for GO32v2 and OS/2 targets

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@29221 3ad0048d-3df7-0310-abae-a5850022a9f2