Benchmark Old vs New I/O Methods Using Brotli

[nixxcode]

Should benchmark old IO stream methods (BrotliInputStream and BrotliOutputStream) against new IO byte channels. (BrotliEncoderChannel and BrotliDecoderChannel)

It would be useful to know which of these I/O methods is faster in particular usage scenarios such as:

• Encoding/decoding small/medium/large files (Disk I/O)
• Encoding/decoding small/medium/large data streams (Memory I/O only, no disk usage)