Set different proxy TCP ports depending on settings, calculate using bitmask

[wiz]

// bitmask calculation
port = 0
if (blockAds) port += 1
if (blockMalware) port += 2
if (useCypherplay) port += 4
if (useTLS) port += 512
return port

// examples:
1 - block ads
2 - block malware
3 - block ads + block malware
4 - cypherplay
5 - block ads + cypherplay
6 - block malware + cypherplay
7 - block ads + block malware + cypherplay
513 - block ads + TLS
514 - block malware + TLS
515 - block ads + block malware + TLS
516 - cypherplay + TLS
517 - block ads + cypherplay + TLS
518 - block malware + cypherplay + TLS
519 - block ads + block malware + cypherplay + TLS