Log window not presenting user friendly information

**Is your feature request related to a problem? Please describe.**
The information displayed in the Log window is not what a user needs to understand what happened with the import

**Describe the solution you'd like**
Summary of the import : number of rows imported, which entities, any errors etc

Locate the plugin's Log window and the import flow in the repository, then trace where import results are currently written. Define the summary around imported row counts, affected entities, and errors, and verify that the Log window presents those results clearly after an import.

Written by the indexing model from the issue text.