Pipelines Configuration: Parameter options overrides (DFCT0010053)

[joshsadam]

What does this PR do and why?

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Fixes #592

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In config/pipelines/pipelines.json add mikrokonda:

{
    "url": "https://github.com/phac-nml/mikrokondo",
    "name": "phac-nml/mikrokondo",
    "description": "Mikrokondo pipeline",
    "overrides": {
      "definitions": {
        "databases_and_pre_computed_files": {
          "properties": {
            "kraken2_db": {
              "type": "string",
              "description": "Kraken2 database",
              "enum": [
                [
                  "DBNAME",
                  "PATH_TO_DB"
                ],
                [
                  "ANOTHER_DB",
                  "ANOTHER_PATH"
                ]
              ]
            }
          }
        }
      }
    },
    "versions": [
      {
        "name": "0.1.2"
      }
    ]
  }

After selecting the pipeline, it should render:

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Simplecov Report

Covered	Threshold
92.32%	90%