Functionality for adding a file to a dataset

[Marcelo]

Overview of the feature request

Allowing for users of the package to upload a file to a dataset in a dataverse instance specified by the users.

What inspired the request?

Wanting to be able to use the package for an external website to be able to upload a file to a dataset within a dataverse instance.

What existing behavior do you want changed?

None

Any brand new behavior do you want to add to js-dataverse?

Uploading a file to a dataset

Any open or closed issues related to this feature request?

None