New port: graphics/py-scikit-image

Image processing SciKit (Toolbox for SciPy)

WWW: http://scikit-image.org/

PR: 217427
Submitted by: eric@camachat.org (maintainer)
Reviewed by: mat
Approved by: swills (mentor, implicit)
Differential Revision: https://reviews.freebsd.org/D10053