tdump: dump a torrent file content information

A simple CLI tool to dump a torrent file content information:

$ tdump Big_Buck_Bunny_1080p_surround_frostclick.com_frostwire.com.torrent
Name   Big_Buck_Bunny_1080p_surround_frostclick.com_frostwire.com
Size   932 MB
Files
       Big_Buck_Bunny_1080p_surround_FrostWire.com.avi   929 MB
       PROMOTE_YOUR_CONTENT_ON_FROSTWIRE_01_06_09.txt    5.0 kB
       Pressrelease_BickBuckBunny_premiere.pdf           3.5 MB
       license.txt                                       180 B