Added install requirements to setup (#488)

* Added install requirements to setup

* Update setup.py
Co-authored-by: Aarni Koskela <akx@iki.fi>

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Co-authored-by: Aarni Koskela <akx@iki.fi>

setup.py

@@ -29,6 +29,8 @@ setup(
     install_requires=['scipy'],
     packages=find_packages(),
     package_data={"": libs},
+    install_requires=['torch', 'numpy', 'scipy'],
+    extras_require={'benchmark': ['pandas', 'matplotlib']},
     long_description=read("README.md"),
     long_description_content_type="text/markdown",
     classifiers=[