Add lancache support/support for downloading via HTTP

[RedHooman]

Hello!

I currently have a lancache setup on my network, which has all my games pre-cached. My internet is pretty poor, so I rely on the cache a lot.

It appears that GameNative exclusively downloads content via HTTPS, even though I have lancache.steamcontent.com pointing to my local server. Is it possible to either add a toggle for downloading over HTTP rather than HTTPS, or implement native lancache support which automatically disables HTTPS if a cache is detected locally?

Thanks!