Exclude shade_record_unpack_illegal_integral test
Exclude shade_record_unpack_illegal_integral test

TODO: implement std::is_floating_point for simd::floatN and use the result to disable_if unpack() functions

ukoeln-vis/ctpperf,szellmann/visionaray,ukoeln-vis/ctpperf,szellmann/visionaray,tu500/visionaray,tu500/visionaray