Add last NIST test vector
Add last NIST test vector

arno01/cryptocat,PeterDaveHello/cryptocat,PeterDaveHello/cryptocat,Cryptodog/cryptocat,DoNotUseThisCodeJUSTFORKS/cryptocat,DGO143/cryptocat,wakermahmud/cryptocat,DoNotUseThisCodeJUSTFORKS/cryptocat,Raynes/cryptocat,Raynes/cryptocat,DGO143/cryptocat,DGO143/cryptocat,DoNotUseThisCodeJUSTFORKS/cryptocat,Cryptodog/cryptocat,arno01/cryptocat,wakermahmud/cryptocat,Raynes/cryptocat