Introduce TLS MITM Detection on Tor Project websites

This ticket is to implement the feature of TLS MITM detection on Tor Project websites in the same way caddy webserver is doing it https://caddyserver.com/docs/mitm-detection on the basis of this paper https://jhalderm.com/pub/papers/interception-ndss17.pdf .

Collecting data on who's maybe trying to attempt to MITM Tor Project website access can be a valuable adversarial intelligence resource