nvidia-inst: add NVIDIA's open-gpu-kernel-modules as option

[notjl]

I noticed that the installer doesn't have support for the open GPU kernel modules from NVIDIA. It would be great if it was one of the options people can opt for when installing NVIDIA drivers.

[manuel-192]

Thanks for bringing this up!
And sorry about the delay with answering, I've been very busy lately.

I plan to add an option that installs nvidia-open-dkms instead of nvidia-dkms.
I assume this is what you meant.
May take some time though, but hopefully I can squeeze some time to implement it during this month.

[manuel-192]

Added option --open for this.