Add MD5 hash information to the dataset information

[davidgamez]

Describe the problem

Currently, the dataset's hash is computed using SHA-256. Many clients rely on MD5 as it's a common hash algorithm for cloud and storage services.

Proposed solution

• Add MD5 hash information to the dataset OpenApi entity as hash_md5. Also, update the documentation for the current hash property, adding the algorithm used to generate it (SHA-256).
  Affected endpoints:

  • v1/gtfs_feeds/{id}/datasets
  • v1/gtfs_feeds/{id} (latestdataset)
  • v1/gtfs_feeds/ (latestdataset)
  • v1/gtfs_datasets/{id}
  • v1/search/

• Compute the MD5 hash when a new dataset is downloaded

• Update previously downloaded datasets' MD5 information

Alternatives you've considered

No response

Additional context

No response