Added Arch Linux setup instructions

[Antares0982]

No description provided.

[dylanhu7]

Did you manage to build the SIBR viewer on Arch? If so, what version of g++ and CUDA did you use?

[dylanhu7]

I was able to build the viewer using gcc/g++ version 12, as well as ffmpeg4.4. For my system, I had to additionally install vtk, hdf5, and fmt packages. I made a PR Antares0982#1 to add these.

[Polyfly]

@Antares0982 a great addition.
In my setup cmake needs an additional dependency: pkg-config. I had to install this additionally.
Can you confirm this requirement?

[Antares0982]

@Antares0982 a great addition. In my setup cmake needs an additional dependency: pkg-config. I had to install this additionally. Can you confirm this requirement?

I acquiesced the base-devel packages are installed, and pkgconf is one of them. I will add base-devel for convenience