Describe your changes

• Use 'feature_names' for cell cycle scores to ensure that gene symbols are passed instead of Ensembl IDs.
• Ensure 'feature_names' are present in the data during the dataset processing step.
• Add test resource scripts for CELLxGENE census data
• Upload test resources to AWS
• Extend testing script to allow for multiple test setups (only updating different input files for now)

Issue ticket number and link

Closes #331

Checklist before requesting a review

• I have performed a self-review of my code

• Check the correct box. Does this PR contain:

  • Breaking changes
  • New functionality
  • Major changes
  • Minor changes
  • Bug fixes

• Proposed changes are described in the CHANGELOG.md

• CI Tests succeed and look good!