Feature/modelblocks convention v1.0.0

[irm-codebase]

Solves #53 and #70

Hopefully the last 'big' change in a while.

• updates clio-tools and adds convention_version to INTERFACE.yaml.
  • currently v1.0.0
• Environments are now fully handled by pixi
  • default: development, holds Snakemake and conda.
  • module: for module rules, must be exported to conda via pixi run export-snakemake-env module.
  • When building the module from the template, there is no workflow/envs/ folder
  • Integration testing takes care that environment files are present in that folder, also checking that conda pins are present (these are not compared thoroughly, as doing so would likely be too brittle).
• Small quality of life improvements:
  • Adds tests/conftest.py, and tells devs to place automated downloads there

[jnnr]

Thanks! Haven't tested it yet. Here are some comments on the readability of the docs.

[jnnr]

Just another suggestion, after that I am fine with merging.