A generator for multiple data types.

[rsi-19]

I am working on a voice agent where all types of integration with multiple telephony providers and aggregators are involved (mostly B2B). It's been a pain to write custom generators for a stream where all kinds of data are being sent—just like socket.iter_text() and socket.iter_bytes(), it will be beneficial for people like me who are working at the intersection of WebSockets and telephony, if we include just a socket.iter_data, where type handling is not done. It's just 2 lines of code, that may help a lot of people.