[FEATURE] New data source to list users in current workspace

[owl2]

Use-cases

I want to interact with databricks workspace to manage users with a list of "display name" in a flat file (eg., a .csv).
When the user is created yet, an error occurs (with an indication that the user exists).

Attempted Solutions

The solution I wanted to implement is to use data source databricks_user. But as indicated in the documentation, the user must exist. If not, an error will occur.

Proposal

I think having a data source like "databricks_users" could be a good idea to iterate on the result and permit to check what exists or not in the Workspace. Open to give more informations if needed.

[alexott]

already work in progress: #4028

[owl2]

Just to know. Have an idea about release date ?