Batch data ingestion of a json file - `uploadSmallFile`

[Ashika08]

Current:
The uploadSmallFile currently takes a python dictionary as the input for data to be ingested.

Suggested:
To add an additional parameter - localFilePath that takes the path of the json file and uses json.load() to read the file into a dictionary. Basically, to handle the file processing part by the wrapper.

[Julien]

Thanks for the proposal. This has been handled by the afdeec4 commit