Kb-python

`info`
- Displays current package, kallisto and bustools versions.

`ref`
- Input arguments have changed: `ref` now takes a genomic FASTA file and GTF as positional arguments
- The genome is sliced into cDNA and intron (if `--velocity`) FASTAs
- New option: `-c` Path to the cDNA FASTA to be generated
- New option: `-n` Path to the intron FASTA to be generated (required for `--velocity`)
- New option: `-a` Path to generate cDNA transcripts to be captured (required for `--velocity`)
- New option: `-r` Path to generate intron transcripts to be captured (required for `--velocity`)

Binaries
- Kallisto and Bustools binaries for Windows, Linux and MacOS are now included in the package. Run `kb info` for versions.

ref
- New options: `--velocity`, `-c`, `-n`
- Implemented reference preparation for RNA velocity. `-c` and `-n` must be provided.

`count`
- Now runs `bustools inspect` and outputs the results to `inspect.json` file within the output directory.

`count`
- Convert count matrices into `loom` files with `--loom` option
- Convert count matrices into `h5ad` files with `--h5ad` option