Audit reverse dependencies

[proppy]

As discussed in https://github.com/googlesamples/assistant-sdk-python/issues/358#issuecomment-552471651 it would be nice to audit project depending on google-assistant-grpc and google-assistant-library.

For example:

• https://github.com/search?q=%27google-assistant-grpc%27+filename%3Arequirements.txt&type=Code
• https://github.com/search?q=%27google-assistant-library%27+filename%3Arequirements.txt&type=Code

Additional processing could allow us to cluster those project by version, forks and recent activity to more effectively communicate downstream change like https://github.com/googlesamples/assistant-sdk-python/issues/359

[proppy]

Other popular reverse dependencies that were mentioned before:

• https://github.com/google/aiyprojects-raspbian/tree/aiyprojects/src/aiy/assistant
• https://github.com/shivasiddharth/GassistPi