docs: Replace ancient swrast conformance docs with more current information.
I don't think Mesa 4.0 swrast conformance is relevant at this point, just point people to the current Khronos list. Also, add some more information on submitting results.
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I don't think Mesa 4.0 swrast conformance is relevant at this point, just point people to the current Khronos list. Also, add some more information on submitting results.