message: Add h5py dependency to setup.py.
  It used to be transitively brought in by keras_applications but we no longer depend on that.
diff: @@ -56,6 +56,7 @@ REQUIRED_PACKAGES = [
  'enum34 >= 1.1.6;python_version<"3.4"',
  'gast == 0.2.2',
  'google_pasta >= 0.1.8',
  + 'h5py >= 2.10.0, 2.11.0',
  'keras_preprocessing >= 1.1.0',
  'numpy >= 1.16.0, < 2.0',
  'opt_einsum >= 2.3.2',
  