Feature request: Make spacing between class properties configurable

[Jeroeny]

I've noticed that v3.4.0 contains the following change: Printer: one-line properties without comments are not separated using one empty line.

In our codebase we have a code standard where we do have an empty line between properties, regardless of there being a comment or not. Now of course I understand that everyone has their own standards.

So maybe it could be nice if this value is configurable, just like linesBetweenMethods. So we can override it in our Printer.

I hope this is something that can be considered. If it is, I'd be happy to contribute a PR.

[dg]

Fixed, I added $lineBetweenProperties