Encrypted ClientHello

### Problem Description
Please consider adding support for **Encrypted SNI** in Adguard Home (if applicable).

I'm no network engineer so I don't know if it even applies, but it would be nice if it could be implemented.

CloudFlare's Reference: https://blog.cloudflare.com/encrypted-sni/
CloudFlare's Test Page: https://www.cloudflare.com/ssl/encrypted-sni/