Missing Include and installation docs for Suse

[Midnight1938]

Include errors

#include <cstdint> seems to be missing from pixels.h when building in Opensuse.

Install docs

Packages required for OpenSuse are not listed. Was able to narrow it down to the following. But requires inclusion of opensuse Factory repo

ffmpeg-6 
ncurses-devel
libXi-devel
libXxf86vm-devel
libXrandr-devel
libXinerama-devel
libXcursor-devel
libavcodec-devel
libavfilter-devel
libavdevice-devel
libavformat-devel
libavutil-devel
libswscale-devel
libv4l-devel
libjpeg-devel
libpng-devel
libtiff-devel
xorg-x11-devel
Mesa-libGLU-devel
ncurses-devel