Fix fastANI module

[Ethan-Hetrick]

PR checklist

Fixes several issues with the fastANI module:

• Replaced custom meta field for module flow control with standard meta.id fields and logic

• Added --threads $task.cpus to ensure proper multi-threading

• Made output file names descriptive

• Added stub block

• Added optional outputs

• 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 module conventions in the contribution docs

• If necessary, include test data in your PR.

• Remove all TODO statements.

• Emit the versions.yml file.

• Follow the naming conventions.

• Follow the parameters requirements.

• Follow the input/output options guidelines.

• Add a resource label

• Use BioConda and BioContainers if possible to fulfil software requirements.

• Ensure that the test works with either Docker / Singularity. Conda CI tests can be quite flaky:

  • For modules:
    • nf-core modules test <MODULE> --profile docker
    • nf-core modules test <MODULE> --profile singularity
    • nf-core modules test <MODULE> --profile conda
  • For subworkflows:
    • nf-core subworkflows test <SUBWORKFLOW> --profile docker
    • nf-core subworkflows test <SUBWORKFLOW> --profile singularity
    • nf-core subworkflows test <SUBWORKFLOW> --profile conda

[vagkaratzas]

Valiant first effort, but will require some more updates.

[vagkaratzas]

add a test with the new ql and rl functionality -- if files are missing from nf-core/test_datasets, push them