Split admin and users input in the logging

In the history logging, split the changes made by regular users and by admin users (automated or workspace admin) so you can easily check what has been entered by users. As an alternative this can even already be achieved by splitting the manual input and the process driven changes. 

Currently we cannot see what changes have been made manually so when users ask "can you see who changed his data" we cannot find it anymore unless we specifically know the time and date (the history exports are too big to be able to export them)