Bring back option for finite grid

In 2.8 grid in 3D viewport became infinite, which is really handy, but in some projects I would massively prefer finite grid with scaling. Infinite grid is great for scenes, but for prop files, where you model individual objects I find the infinite grid little intimidating. It leaves me with the feeling that I should be filling it up with something, else I'm not doing enough, I'm not using all the resources, all the possibilities.

In reality I only need to fill up couple square meters space, and I want UI to reflect that. I think having finite space filled up gives better sense of accomplishment, and also helps differentiate between scene files, and prop files.

It should just be an option in overlays pop-up, where you can switch to finite grid and set its scale.