Adding openSUSE's installation step.

[archerallstars]

openSUSE required packages are a bit different from Fedora as the followings:

• egl-utils package that provides eglinfo and es2_info, would be in the package mesa-demo-egl and mesa-demo-es that are part of the mesa-demo package on openSUSE.
• mesa-demos is mesa-demo on openSUSE.
• mesa-vulkan-drivers that provides libVkLayer_MESA_device_select, libvulkan_intel, libvulkan_lvp, libvulkan_radeon, can be installed separately as mesa-vulkan-device-select, libvulkan_intel, libvulkan_lvp, and libvulkan_radeon packages on openSUSE.
• vdpauinfo is part of libvdpau1 on openSUSE.

Therefore, on openSUSE, the user needs to install required packages with:

sudo zypper install clinfo mesa-demo mesa-vulkan-device-select libvulkan_intel libvulkan_lvp libvulkan_radeon python3 libvdpau1 vulkan-tools