Feature request: allow specifying route add https://site same as route add site:443

[Kamilcuk]

Hi, please kindly allow specifying the following:

    route add dyzio https://site.com https://othersize.com opts "auth=kamil"

To be the same as

    route add dyzio site.com:443 https://othersize.com opts "auth=kamil"

I.e. the https:// prefix will set the :443 default port. This will highly improve readability and decrease errors on routing and make them self explanatory. Also, the links in fabio UI with ui.routingtable will show https://site.com and naturally forward to https.

Thanks, fabio is amazing!