add cleaner for APT package lists

removes the locally cached package lists in /var/lib/apt/lists, fixes az0/cleanerml#24.
From https://en.wikipedia.org/wiki/Advanced_Packaging_Tool:
> /var/lib/apt/lists/: storage area for state information for each package resource specified in sources.list

This frees about 180MB on my system, and can solve errors in case some package lists are corrupted (`E: The package lists or status file could not be parsed or opened.`) or a lock file improperly left in place (`E: Could not get lock /var/lib/apt/lists/lock`)