Enable Downloading Machine Learning (Binary) Files

[AlexCatarino]

Expected Behavior

Be able to upload machine learning models that are trained locally.

Actual Behavior

Not supported. Users need to use the Download method that returns a string object.

Potential Solution

Add DownloadFile method to ObjectStore: bool DownloadFile(string key, string url); it could use the featured implemented by #6164.

Checklist

• [x] I have completely filled out this template
• [x] I have confirmed that this issue exists on the current master branch
• [x] I have confirmed that this is not a duplicate issue by searching issues
• [x] I have provided detailed steps to reproduce the issue