Add boolean makeFinal() default false to Getter and Setter.

Though it's already discussed here (discusstion start is here) and will, probably, be "won't fix" anyway — but I consider it useful in some rare cases when getter and/or setter is needed to be explicitly final (not for marking most of getters/setters as final).

As I haven't found this wish in this issue-tracker, I took the liberty to repost it here (at least: to group all requests in one place) — please, feel free to close it immediately, if it's still a no-way.