A review about jsonpack

[jaitjacob]

are you still keen on accepting PRs for performance tests? I'd propose we evaluate the performance on the basis of the following parameters to benchmark the code at each point.

Compression ratio
The size of the JSON post compression, compared to the original JSON. This can be used to determine the efficiency of the compression, the higher the CR better the compression.

File size after compression and reconstruction
This parameter determines the size in bytes of the JSON after compression and the JSON size after the reconstruction in order to identify the loss of data in the compression and reconstruction process. It is measured in bytes. I am aware that jsonpack is lossless.

Unpacking integrity
Did the packed JSON unpack to be the same as the original JSON? A test to check if their hashes match.

Compression Speed
Time required for compressing the JSON in seconds.

Saving percentage
Calculate the percentage value of the shrinkage source(initial) JSON.