Retain current NVG implementation as an option

[MurderOne]

I know it's been the subject of multiple "bug" reports, and may very well be a bug. However, I think the current setup for NVG should be retained at least as an option. I've gotten used to, and grown fond of it, as I can see everything without the need to switch anything off or on, or attempt to peer under anything. It did initially give me all kinds of "weirdness", but having forced myself to use it since it's been implemented, I find it pretty useful the way it is.