Merge branch 'jinhai' into 'develop'

Add requirements.txt

See merge request jinhai/vecwise_engine!9

requirements.txt

+# This file may be used to create an environment using:
+# $ conda create --name <env> --file <this file>
+# platform: linux-64
+aniso8601=6.0.0=py_0
+asn1crypto=0.24.0=py36_0
+atomicwrites=1.3.0=py36_1
+attrs=19.1.0=py36_1
+blas=1.0=mkl
+ca-certificates=2019.1.23=0
+certifi=2019.3.9=py36_0
+cffi=1.12.2=py36h2e261b9_1
+chardet=3.0.4=py36_1
+click=7.0=py36_0
+conda=4.6.8=py36_0
+conda-env=2.6.0=1
+cryptography=2.6.1=py36h1ba5d50_0
+cuda92=1.0=0
+faiss-cpu=1.5.0=py36_1
+faiss-gpu=1.5.0=py36_cuda9.2_1
+flask=1.0.2=py36_1
+flask-restful=0.3.6=py_1
+flask-sqlalchemy=2.3.2=py36_0
+idna=2.8=py36_0
+intel-openmp=2019.1=144
+itsdangerous=1.1.0=py36_0
+jinja2=2.10=py36_0
+libedit=3.1.20170329=h6b74fdf_2
+libffi=3.2.1=hd88cf55_4
+libgcc-ng=8.2.0=hdf63c60_1
+libgfortran-ng=7.3.0=hdf63c60_0
+libstdcxx-ng=8.2.0=hdf63c60_1
+markupsafe=1.1.1=py36h7b6447c_0
+mkl=2019.1=144
+mkl_fft=1.0.10=py36ha843d7b_0
+mkl_random=1.0.2=py36hd81dba3_0
+more-itertools=6.0.0=py36_0
+ncurses=6.1=he6710b0_1
+numpy=1.16.2=py36h7e9f1db_0
+numpy-base=1.16.2=py36hde5b4d6_0
+openssl=1.1.1b=h7b6447c_1
+pip=19.0.3=py36_0
+pluggy=0.9.0=py36_0
+py=1.8.0=py36_0
+pycosat=0.6.3=py36h14c3975_0
+pycparser=2.19=py36_0
+pycrypto=2.6.1=py36h14c3975_9
+pymysql=0.9.3=py36_0
+pyopenssl=19.0.0=py36_0
+pysocks=1.6.8=py36_0
+pytest=4.3.1=py36_0
+python=3.6.8=h0371630_0
+python-dateutil=2.8.0=py_0
+pytz=2018.9=py_0
+readline=7.0=h7b6447c_5
+requests=2.21.0=py36_0
+ruamel_yaml=0.15.46=py36h14c3975_0
+setuptools=40.8.0=py36_0
+six=1.12.0=py36_0
+sqlalchemy=1.3.1=py36h7b6447c_0
+sqlite=3.26.0=h7b6447c_0
+tk=8.6.8=hbc83047_0
+urllib3=1.24.1=py36_0
+werkzeug=0.14.1=py36_0
+wheel=0.33.1=py36_0
+xz=5.2.4=h14c3975_4
+yaml=0.1.7=had09818_2
+zlib=1.2.11=h7b6447c_3