johnlees/pp-sketchlib: Sketchlib 1.7.4

New features:

• Sketching kernel overhaul: should be faster, and supports read datasets larger than the device memory size (#63 #64)
• Increase the size of the countmin table on GPUs to 2^30 columns, takes up about 30% of a 3090's memory
• Better progress meter for read sketching
• Save whether the DB was calculated using the reverse complement strand

Bug fixes:

• Fix indices for reference vs query distance calculations, hit when reaching ~100k queries
• If sketching craps out early, save the successful sketches up until that point to the HDF5 DB without corrupting it, so it can be joined later.

Other:

• Refactor the CUDA code a bit, putting classes into their own files.