Publish WBcel235

[maxulysse]

• reference_version -> source_version

• New file assets/genomes/Caenorhabditis_elegans/NCBI/WBcel235_updated.yml, generated from assets/genomes/Caenorhabditis_elegans/NCBI/WBcel235.yml

• New field in asset files:

  • bowtie1_index
  • bowtie2_index
  • bwamem1_index
  • bwamem2_index
  • dragmap_hashtable
  • hisat2_index
  • kallisto_index
  • msisensorpro_list
  • rsem_index
  • salmon_index
  • star_index
  • vcf_tbi

• new params: kallisto_make_unique

• New logic to skip creation of existing asset

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/references branch on the nf-core/test-datasets repository.
• Make sure your code lints (nf-core pipelines 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).