eager nf-validation tests

1. :heavy_check_mark: All valid
2. :heavy_check_mark: Single/double stranded must not share sample ID
3. Check headers
4. Check number of columns
5. Sample_id is required
6. library_id is required
7. lane must be numeric
8. colour chemistry must be either 2/4
9. Pairmenet mist be either paired / single
10. Stradneness must be double/single
11. damage treatment must be none/half/full
12. FASTQ/BAM file paths must not contain spaces
13. FASTQ/BAM files must be fastq.gz/fq.gz/.bam
14. BAM can only be single end [??? - what about with Alex's request]
15. BAM must have a reference ID
16. FASTQ must NOT have a reference ID [or is ignored?]
17. R2 must NOT be set to single end
18. R2 must have an R1
19. BAM is mutually exclusive to R1/R2
20. BAM is mutually exclusive to R1
21. All files must exist
22. One of at least BAM or R1 FASTQ must exist

## Discard

3. ~~Each Library_ID to a Simple_ID must be unique~~

:heavy_check_mark: