Add verification test that also tests failure.
Add verification test that also tests failure.

NicolasT/reedsolomon,lukechampine/reedsolomon,fwessels/reedsolomon,beni55/reedsolomon,somethingnew2-0/reedsolomon,justmao945/reedsolomon,NicolasT/reedsolomon,klauspost/reedsolomon