Description of feature

These might involve reimplementing certain parts of the feature, if bugs are found.

• Build the three test cases outlined by Júlia:
  • Installing a subworkflow which installs a module from another repo which is also installed from nf-core, for example fastqc which is already in the pipeline template.
  • Installing the subworkflow on an old version (sha) and updating it, make sure that all modules from different repos are updated.
    • Probably will need the same ModulesRepo code in the update component
  • Removing nf-core fastqc to make sure the fastqc module from the other repo is kept.