poly-G trimming with Fastp

[OksanaVe]

Fastp doesn't recognize newer 2-channel SBS chemistry Illumina platforms and doesn't trim polyG at the end of the reads. So QC'd reads in the pipeline retain polyG artifacts. Adding -g flag should fix the issue by forcing >10xG tail trimming. Or we could raise an issue in Fastp project to update their screening for newer Illumina platforms