Replace requests with httpx

[AngellusMortis]

The requests package is basically dead in the water. There was a lot of drama in the community over requests and requests v3, but I will leave that out of this issue.

The new replacement for requests is httpx. I would like to replace get requests replaced and using the newer httpx library. httpx is not quite 1.0 yet, but the devs believe the interface should be stable. This issue can be head off until the official 1.0 version is actually out though as it should be coming out any time now.

https://www.python-httpx.org/