Add pipeline.py.
Add pipeline.py.

This file is just because I got tired of running the manual steps by hand to
check what parameters affected what – so I composed everything.

It's kinda nice that writing this didn't affect any other files – kinda nifty
"verficiation" that the other modules are decently well-factored (or so I
claim...)

FAMOUS LAST WORDS.

dbarella/steganographic-image-processing