Tensorflow v1.11.0 and Python3.x compatible of ENet. GPU/CPU.
Inspired from https://github.com/fregu856/segmentation.git
https://assiaben.github.io/posts/2018-06-tf-unpooling/
https://github.com/assiaben/w/blob/master/unpooling/unpool_test.py