Add pbcpgtools/alignedbamtocpgscores module

[inemesb]

PR checklist

Closes #9277

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[SPPearce]

Hmm.
It looks like this tool sometimes makes one bed/index/bw file, and sometimes makes three?
Would it make sense to put them into different output channels?

[SPPearce]

Suggested change

[SPPearce]

Suggested change

[SPPearce]

Suggested change

[SPPearce]

Suggested change

	pbcpgtools: \$(aligned_bam_to_cpg_scores --version | sed 's/aligned_bam_to_cpg_scores //')
	pbcpgtools: \$(aligned_bam_to_cpg_scores --version | sed 's/.* //')