[Feature] Tab Separator

[simsong]

Converted from SourceForge issue 2230536, submitted by jessekornblum

It'd be nice if there was a --tab option to md5deep, sha256deep, etc. so that the hash and filename are separated by a tab instead of spaces.
Also if file size or timestamp are included they should be separated by a single tab instead of spaces.

Originally submitted by rbeede, http://sourceforge.net/users/rbeede/