[DRAFT] Add telseq "a software that estimates telomere length "

[lindenb]

Hi all,

This is a PR to include telseq in SAREK

TelSeq is a software that estimates telomere length from whole genome sequencing data (BAMs).

telseq is 'just' one extra process that use cram+fasta+fai+(captured.bed)?.

Warning

I must say I started coding this but I won't have much time to test/work on this. So feel free to ignore/modify this PR. It looks like it's working with the small dataset I used. May be you'd like to change the location of the code, the output directory etc.. I also hope to write a module for multiqc to add this "telomere length" in the final output.

PR checklist

• This comment contains a description of changes (with reason).
• If you've fixed a bug or added code that should be tested, add tests!
• If you've added a new tool - have you followed the pipeline conventions in the contribution docs
• If necessary, also make a PR on the nf-core/sarek branch on the nf-core/test-datasets repository.
• Make sure your code lints (nf-core lint).
• Ensure the test suite passes (nextflow run . -profile test,docker --outdir <OUTDIR>).
• Check for unexpected warnings in debug mode (nextflow run . -profile debug,test,docker --outdir <OUTDIR>).
• Usage Documentation in docs/usage.md is updated.
• Output Documentation in docs/output.md is updated.
• CHANGELOG.md is updated.
• README.md is updated (including new tool citations and authors/contributors).