Populate Repo
Making an issue here so it doesn't get forgotten.
What needs to be done:
- Move python exporters and sample attributes from both cmb/cmb and cmb/cmb-testing-data to this repo
- Set up CMB to pull this repo as a submodule (?) or maybe a separate project
- Fix the ExportSim tests in Modelbuilder so they reference the exporters/attributes from this repo rather than the testing-data repo