Populate datasets with loop and datasetDictionary

[mraguso2]

Description

Change the workflow on how datasets are populated in index. Make it easier to maintain and make edits / add datasets

Fixes # (issue no.) #163

Type of change

• [x] New feature (non-breaking change which adds functionality)
• [x] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [x] This change requires a documentation update on how to update

Let me know what you think