[RFC] Support for HTTPS Protocol

We need to be able to define HTTPS bindings for our app's deployed with KUDU, so since I found https://github.com/projectkudu/kudu/issues/923 and that didn't seem to have much traction, I thought I would look into how this could possibly be added.

So this is a work in progress, but I wanted to see if I could get some feedback midway as I choose to change the configuration concept as well.

I am still figuring out how to deal wit certificates, as those become a thing to deal with when we suddenly wan't to do https.
Can you give reason why the Kudu configuration is needed?  For instance, envs or appSettings does not scale and not intuitive etc.