Add cramino test data

[aksenia]

Summary

Test fixtures for the new cramino module (MultiQC/MultiQC#3603):

• example_aligned_karyotype.cramino.txt - based on the example file attached to the issue (aligned ONT adaptive-sampling BAM, run with --karyotype; includes identity stats and a full per-chromosome block). Sample name and internal File name/Path fields anonymised.
• toy_ubam.cramino.txt - synthetic unaligned (--ubam) output: no identity stats, no karyotype block.
• toy_estimated_identity.cramino.txt - synthetic output using the "est. identity" label variant cramino emits in one of its identity modes, plus a small karyotype block.
• toy_no_contigs.cramino.txt - synthetic output covering the # Warning - no contigs found in BAM file! case cramino prints when --karyotype was requested but no contigs were found.

These cover the format variations found by reading cramino's actual source (text_output.rs/metrics.rs), not just the single example in the issue.