Introduce Apache w/ SSL service type

Now that we have an object oriented architecture, we can properly implement the handling of SSL.

In the front end we have the hostingService_http and in the backend we have the provisionService_http classes.
We also have the default Apache implementation of these service types.

We need to introduce a new "Apache w/ SSL" class, that extends the default apache class with the additional functionality.
While the exact configurability still needs to be determined, this issue : #836136: Simplify ports support. gives us a start at least.

Because we are using inheritance, the SSL class will primarily be dropping down the parent methods, with slight additions.
As an example, when we are generating the Vhost on the standard port, the SSL variant will simply also create the 443 vhost.

This absolves the standard Apache class from the additional complexity involved in SSL.