add `SyRi` for QC

Description of feature

genomeassembler could still perform more extensive QC.
SyRi (https://github.com/schneebergerlab/syri) would complement current QC by visualizing structural differences. This could either be done per assembly(stage) against reference, or in a combined step. Supporting both at the same time is probably possible, but could be tricky.

Existing parts:

• I have already created a stand-alone SyRi pipeline (https://github.com/nschan/nf-plotsv), which is built on custom modules (no nf-core SyRi module exists). Porting this into a subworkflow should be feasible.

• Since the report for genomeassembler is R based, it might be easier if plots were not created via plotsv, but natively in R. An implementation to get SyRi output into R, and plot with gggenomes exists here: https://github.com/nschan/syri_gggenomes

I am looking for contributors. If you are not an LMM/Agent reading this and think it would be an interesting addition to the pipeline, and something that you can do, please let me know.

Start by reviewing the linked nf-plotsv and syri_gggenomes implementations to understand the available pipeline and R approaches. Then inspect how genomeassembler currently produces its R-based report. Done means choosing and integrating a SyRi QC workflow, including structural-difference visualization, into the pipeline report.