Implement more decompression algorithms

Currently we only support uncompressed images and images compressed with gzip.

@Razaloc says that the supported file extensions for bmap-tools are
```
'bz2', 'gz', 'xz', 'lzo', 'zst' and a "tar" version of them: 'tar.bz2', 'tbz2', 'tbz', 'tb2', 'tar.gz', 'tgz', 'tar.xz', 'txz', 'tar.lzo', 'tzo', 'tar.lz4', 'tlz4', '.tar.zst', 'tzst'.
```