added setup requirements

requirements.txt

+absl-py==0.7.0
+astor==0.7.1
+certifi==2018.11.29
+chardet==3.0.4
+Click==7.0
+cymem==2.0.2
+cytoolz==0.9.0.1
+decorator==4.3.2
+dill==0.2.9
+gast==0.2.2
+grpcio==1.19.0
+h5py==2.9.0
+idna==2.8
+Keras-Applications==1.0.7
+Keras-Preprocessing==1.0.9
+Markdown==3.0.1
+mock==2.0.0
+msgpack==0.5.6
+msgpack-numpy==0.4.3.2
+murmurhash==1.0.2
+networkx==2.2
+nltk==3.4
+numpy==1.16.2
+pandas==0.24.1
+pbr==5.1.2
+plac==0.9.6
+preshed==2.0.1
+protobuf==3.6.1
+python-dateutil==2.8.0
+pytz==2018.9
+regex==2018.1.10
+requests==2.21.0
+scikit-learn==0.20.2
+scipy==1.2.1
+singledispatch==3.4.0.3
+six==1.12.0
+spacy==2.0.18
+tensorboard==1.13.0
+tensorflow==1.13.1
+tensorflow-estimator==1.13.0
+termcolor==1.1.0
+thinc==6.12.1
+toolz==0.9.0
+tqdm==4.31.1
+ujson==1.35
+urllib3==1.24.1
+Werkzeug==0.14.1
+wrapt==1.10.11