LZ_XOR on enwik8

First results of LZ_XOR on enwik8 (a common 100MB test file of Wikipedia data, higher ratio is smaller file):

lzham_codec_devel: 74.93%  .205 GiB/sec decompress

Zstd:              69.03%  .639 

LZ_XOR 1/10:       63.72% 1.188 (36,277,397 bytes)

miniz (Deflate):   63.54%  .288 

LZ_XOR:            63.08% 1.204 (36,922,969 bytes)

LZ4:               58.09% 2.369 

In this run LZ_XOR used a 128KB dictionary and I limited its parsing depth to speed up the encode.

Options:

LZ4_HC: level LZ4HC_CLEVEL_MAX

Zstd: level 11

lzham_codec_devel: defaults

LZ_XOR: 128KB, GPU assisted, exhaustive partial match searching disabled

Some LZ_XOR statistics:

Total LIT: 263887

Total XOR: 2380411

Total COPY: 9544076

Total used distance history: 1238007

Total LIT bytes: 755210

Total XOR bytes: 15157561

Total COPY bytes: 84087229

Total instructions: 12188374