Revise Summary and Description for Lists

[brian-comply0]

Many of the endpoints that return lists, have a description that reads as if all of the files will be returned instead of a list of the files. Please revise the following endpoints as follows:

• GET /{model-name}
  • [x] The summary and description should say, "Returns a list of every relevant {model-name}." (instead of "Returns every relevant {model-name}")
• GET /{model-name}/{id}/snapshot (note, this may be addressed in #84 )
  • [x] The summary and description should say, "Returns a list of every relevant snapshot." (instead of "Returns every relevant snapshot")
• GET /{model-name}/{id}/attachment
  • [x] The summary and description should say, "Returns a list of every relevant attachment." (instead of "Returns every relevant attachment")
• GET /profile/{id}/resolved-snapshot
  • [x] The summary and description should say, "Returns a list of every relevant resolved profile catalog." (instead of "Returns every relevant resolved profile catalog")

[brian-comply0]

This is fully addressed in PR #72