Add OpenSuse support to linux-pkgs

[rjhorniii]

Add support for OpenSuse, which is rpm based w/o dpkg or yum

[rjhorniii]

OpenSuse uses rpm directly from zypper or yast, not yum or dpkg. The rpm -q -a list seems to be the format that you want. If you want to change more, rpm -q -a -i gives a large description that awk could customize.