Adds the opcodes vaddps, vaddpd, vaddss, vaddsd, vsubps, vsubpd, vsubss, vsubsd, vpaddb, vpaddw, vpaddd, vpaddq, vpsubb, vpsubw, vpsubd, vpsubq, vpaddusb, vpaddusw, vpaddsb, vpaddsw, vpsubusb, vpsubusw, vpsubsb, vpsubsw, vpmaddwd, vpmaddubsw.
Fixes a bug detecting an implied escape byte in combination with evex prefix in fast decoder.
Issues: #1312