added hypothesis.py from scibot
added hypothesis.py from scibot

Migrating all hypothesis related code to its own repo since there are
now a couple of different projects that need to make use of it.
See https://github.com/SciCrunch/scibot/blob/f7303a518a794f5aeddd608d81edeb5d70385a0d/hypothesis.py
for the history of the file.

tgbugs/hypush