Investigate faster inflate implementations

[Arkanosis]

The currently used inflate implementation works pretty well, but is a lot slower than zlib. This means that unless we use multiple threads, bamrescue is slower than gzip. Switching to a state-of-the-art inflate implementation could make bamrescue as fast as gzip with a single thread, and much faster with multiple threads.

[Arkanosis]

Update the benchmarks against gzip -t, then, and also add samtools quickcheck. The latter should be faster than both gzip and bamrescue, but only checks for corruption in the header and the footer.