Support Hubs

[fmhall]

🚀 Feature Request

Support hubs, and make the user experience as close to the traditional Warpcast API experience as possible.

🔈 Motivation

The Warpcast API is being deprecated at the end of the year.

📎 Additional context

Hubs use protobuf, so to interface with them we must generate protobuf types for each request/response and message type.

This makes the user experience a lot worse in Python, so we will need to create helper classes and functions that abstract away as much of the overhead as possible.

Initial work can be found here: #518

Progress:

• Create initial Hub client class
• Add generated protobuf classes
• Implement initial tests and Proof of Concept
• Support every message type in the Hubble protocol
• Create helper methods and classes to abstract away nuance of protobuf
• Explore strong typing for request/response and message types
• Write unit tests and integration tests for all hub endpoints and helper functions