Explicitly adding all packages as imports

ml-agents-envs/setup.py

         'Programming Language :: Python :: 3.6'
     ],
 
-    packages=['mlagents.envs'],  # Required
+    packages=['mlagents.envs', 'mlagents.envs.communicator_objects'],  # Required
     zip_safe=False,
 
     install_requires=[

ml-agents/setup.py

         'Programming Language :: Python :: 3.6'
     ],
 
-    packages=['mlagents.trainers'],  # Required
+    packages=['mlagents.trainers', 'mlagents.trainers.bc', 'mlagents.trainers.ppo'],  # Required
     zip_safe=False,
 
     install_requires=[