Merge SpLitteR

[Itolstoganov]

• Barcode index structure
• Contracted graph structure
• Scaffold graph vertices can store either edges or paths
• SpLitteR tool

[asl]

@Itolstoganov Please check compile errors on https://github.com/ablab/spades/actions/runs/10792540126/job/29932418947

Looks like there are suspicious warnings