Add artifacts for testing to repo
There's a number of artifacts required for injection tests, non-injection tests, unseeded runs, etc. that may be worth including in the repo (if not too large)
From the discussion in !89 (merged): "e.g. in share/ we could provide a PSD, detrsp_map, banks, .gwf files, and a test script with relative paths for users to run an end-to-end test of the pipeline to ensure they're getting the right outputs etc. I believe @luke.davis has artifact generation scripts as part of CI we might want to leverage if we're looking into this later."