Make GooseUser and GooseUserData cloneable

[S7evinK]

As the title describes, this implements Clone and Debug for GooseUser and GooseUserData.

In our use-case we need to pass GooseUser to a SDK which is doing all the network requests.

[jeremyandrews]

Interesting, thanks for the PR. Be sure to run through cargo fmt which enforce our coding standards.

In your use case, does Goose provide you any metrics? When you clone and pass off the GooseUser, is something other than Reqwest making the requests? Why not set up a proxy? I'm trying to better understand your use case, and the implications of this change.

[S7evinK]

Thanks for the quick reply. :)

Goose provides metrics in our case which we need to sanitize, as having metrics for each "room" (e.g. /_matrix/client/v3/rooms/{roomId}/join) doesn't make sense as we care about the /join endpoint only.
The underlying matrix-rust-sdk uses reqwest as well, but if we pass it the client provided by GooseUser, we're losing the metrics.

[jeremyandrews]

I don't see any inherent downside to making things cloneable and debug formatted, thank you!

Note that you can name requests to avoid different paths from creating a different metric. For example, see how Goose Eggs does this with static elements:
https://github.com/tag1consulting/goose-eggs/blob/428939d1634acd3224d1f635433eee56ab98e605/src/lib.rs#L1076