np.random.choice doesn't support tuple (or something like that) anymore

[Hope1337]

In augmetation file, at function RandomSampleCrop, we use np.random.choice, but I guess that there was some change in numpy lib or python so we can't use it for tupe like : a = (None, (1, 2), 3)

Solution : replace np.random.choice by random.choice in random lib.