3 operations added

[amirkhan-ak-sf]

Enhancements based on field feedback

3 operations added:

• list documents in store
• remove documents from store based on file or URL name
• query based on filter (file or URL name) from store

[salesforce-cla[bot]]

Thanks for the contribution! Unfortunately we can't verify the commit author(s): Tommaso Bolis t***@s***.com. One possible solution is to add that email to your GitHub account. Alternatively you can change your commits to another email and force push the change. After getting your commits associated with your GitHub account, refresh the status of this Pull Request.

[alick888]

I've tested the embedding operations in S3, local and url, they are all working fine. I think it's safe to merge the two branches.