🐞BUG: not working with IPv6 ips to https (fix inside)

Now if we get an ipv6 request to https it will break here
lib/requestHandler.js
```
function connectReqHandler(req, socket, head){
var host = req.url.split(":")[0],
targetPort= req.url.split(":")[1],
```
because a request would look like: https://[fa80::ee85:ffd0:2004:4947]:443/
so we need to separate this events
```
let host;
let targetPort;
if (req.url.indexOf('\]') > 0) {
host = req.url.split(/[\[\]]/)[1];
targetPort = req.url.split("]:")[1];
} else {
host = req.url.split(":")[0];
targetPort = req.url.split(":")[1];
}
```

Read lib/requestHandler.js, starting at connectReqHandler and its parsing of req.url. Exercise the HTTPS proxy path with an IPv6 address in brackets, then verify that ordinary IPv4 requests still work. Done means both address forms reach the intended host and port without breaking request handling.

Written by the indexing model from the issue text.