* New last/split module to find split alignments.
The `last-split` tool distributed with [LAST](https://gitlab.com/mcfrith/last)
finds split or spliced alignments in a MAF file that is produced with, for
example, LAST `lastal` command.
This new module is part of the work discribed in Issue #464. During this
development, we fix the versiob of LAST to 1219 to ensure consistency. We will
upgrade it later.
* Update software/last/split/main.nf
* Apply suggestions from code review
Co-authored-by: Harshil Patel <drpatelh@users.noreply.github.com>
