Add GPU accelerated STAR (Parabricks fq2bam module) as option for aligner

### Description of feature

This feature would add GPU accelerated STAR as an option for aligners. This would be accomplished by adding the [Parabricks rnafq2bam module](https://github.com/nf-core/modules/tree/master/modules/nf-core/parabricks/rnafq2bam) to this pipeline. 