[ubuntu-precompiled] enable offline installation of driver packages

[tariq1890]

This PR introduces a completely new method of installing the nvidia precompiled driver packages.

Motivation

We recently discovered that our offline installs weren't exactly "offline". During the driver container run-time, the driver container was still downloading packages externally. The root cause of this was the multiple apt-get update calls, which would erase the previously downloaded packages from the apt-get install -y --no-install-recommends --download-only <packages> command.

Summary of changes:

i) Download the packages and its dependencies using the following commands

apt-get download $PACKAGE
apt-get download $(apt-cache depends --recurse --no-recommends --no-suggests --no-conflicts --no-breaks --no-replaces --no-enhances $PACKAGE | grep "^\w" | sort -u)

ii) Move to a permanent location and gzip the apt-get downloaded packages.
iii) Create a local apt package source pointing to the new directory with the downloaded packages

NOTE: In this PR, I also move away from installing the giant metapackage nvidia-drivers-${DRIVER_VERSION}-server and purging unneeded packages thereafter. Instead, we just install the packages that we actually need instead of worrying about any bloat

[shivamerla]

Where else was apt-get remote or apt-get clean run after this step which was causing the packages to be removed? apt-get update itself doesn't remove downloaded packages.

[tariq1890]

So when I downloaded packages using apt-get install --download-only and then ran an update apt-get update. I noticed that the downloaded packages in /var/cache/apt/archives were wiped out

[shivamerla]

These will just install utils like nvidia-smi, nvidia-persistenced, nvidia-mps-control etc, but not other required libs like encoder/decoder/gl/cuda libs etc. There are ton of other user space packages that we need. where are those installed as dependencies?

[tariq1890]

If the encoder/decoder/gl/cuda libs are required, I can install them. I wasn't aware that they were needed.

I validated the current container with mps and tests like gpu-burn. They worked fine

[tariq1890]

I've added the other packages. Please check again