Use preferences to decide if tabs or spaces are used in build script editor

[UdoW]

Expected Behavior

If I format the script code in the editor I want to get a formatted code. I want to decide if I want to have the idendation made by space or tabs like in the text editor or in the Java editor.
The preferences should be able to be saved per project.
The preferences should not depend on the global text editor preferences.
The preferences should be able to be defined globally but also project specific.

Context

This would make a consistent look and feel for all projects in a workspace for all build script files.