Bug#875959: vidia-graphics-drivers: port nvidia-prime from Ubuntu

[ghisvail at gmail.com]

On Thu, 5 Jul 2018 23:20:05 +0300 Vincas Dargis <vindrg at gmail.com>
wrote:
> Especially as now optirun crashes in Sid [0], and without having
prime-select there's no simple way to switch to discrete Nvidia mode.

As of the latest version of the driver, Nvidia supports switching to
intel-only, hybrid and nvidia-only.

It works on a default install of the latest Pop!_OS and Ubuntu but I
failed to get it working on Debian Buster (with backports) and Debian
Bullseye, sadly.