Added IRIDA Next JSON output file

[sgsutcliffe]

Added in the iridanext plugin and a iridanext.config to format output JSON for IRIDA-Next compatibility. Included all output files per sample.

• detailed_summary.tsv
  - mlst.tsv
  - plasmidfinder.tsv
  - resfinder.tsv
  - results.xlsx
  - settings.txt
  - summary.tsv

No global or meta information added.

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/staramr 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>).
• 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).

[apetkau]

This looks great Steven. Thanks 😄 . Just one comment, which is unrelated to changes you've made but I just noticed it and so we should fix it.

[apetkau]

Could you change nf-validation to [email protected] so that we are using a fixed version.

[sgsutcliffe]

Will do!