BUSZ compression

This version adds the option of compressing sorted BUS files to BUSZ files and decompressing BUSZ files. For a detailed description of the BUSZ format see https://github.com/BUStools/BUSZ-format

compress

bustools compress compresses a sorted BUS file.

decompress

bustools decompress decompresses and existing BUSZ file and writes out a BUS file.

Both commands can write their output (BUS or BUSZ) to standard output via the -p flag and read binary input from standard input by using - in place of the file name.