Verify ssl peer certificates

[ManiacTwister]

Hello,

Currently the ssl certificate aren't verified. In my opinion you should change this behaviour because only if the peer certificate is verified the connection can be secure. As a first step, the sslsockets verifymode should be changed to QSslSocket::VerifyPeer.

Ideally there should also be a way to specify ca certificates and fingerprints on a per server basis.