Peter M. Groen / openbr

Conflicts:
	openbr/core/core.cpp

Decouple variantlist

Conflicts:
	openbr/core/qtutils.cpp
	openbr/plugins/landmarks.cpp

This reverts commit 04105a9414fb68a95667812184e89cb937e858d5.

Instead of processing things in blocks, this version wraps the transform in
a stream, with the input transform as 1 stage, and the other stage having
transforms that estimate time to completion, nad output templates to a gallery

Allows users to directly specify how stream handles input data (i.e. reads from
a video source, or just distributes the templates)