Update inject_metadata.py to use datalad-catalog utilities

[jsheunis]

The script/module https://github.com/psychoinformatics-de/sfb1451-projects-catalog/blob/main/code/inject_metadata.py contains several functions to generate the base structure of a catalog-compliant metadata item. This functionality will be available in datalad-catalog pending the merging of datalad/datalad-catalog#378. Once that is done, this module should be updated to use those new utility functions.

[jsheunis]

Rather, this script: https://github.com/sfb1451/tabby-utils/blob/main/load_tabby.py

Or is the former still used and useful to update? @mslw

[mslw]

We covered this in the lab meeting, but FTR: both are being used.

• tabby-utils repo covers processing of tabby files (adding records to datasets, extracting metadata straight into catalog)
• this repo covers all other curation / metadata processing