Adding mgikit demultiplexing

[ziadbkh]

Adding demultiplexing MGI fastq data Closes #184

PR checklist

• [X] This comment contains a description of changes (with reason).
• [X] 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/demultiplex branch on the nf-core/test-datasets repository.
• [X] Make sure your code lints (nf-core pipelines lint).
• [X] 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>).
• [X] Usage Documentation in docs/usage.md is updated.
• [X] Output Documentation in docs/output.md is updated.
• [ ] CHANGELOG.md is updated.
• [X] README.md is updated (including new tool citations and authors/contributors).

[nf-core-bot]

[!WARNING] Newer version of the nf-core template is available.

Your pipeline is using an old version of the nf-core template: 3.0.2. Please update your pipeline to the latest version.

For more documentation on how to update your pipeline, please see the nf-core documentation and Synchronisation documentation.

[apeltzer]

Hi @ziadbkh -I'll take a look soon I hope. Do we have some test data for this to be tested via the CI entirely?

[ziadbkh]

@apeltzer: Yes, there is the profile `test_mgikit' with datasets for testing and hosted online.