Group plugin by name

[DropSnorz]

In OwlPlug, plugins are mainly displayed in a file-oriented way. A per-plugin display would be interesting to see where file are located for each plugin. For such feature, plugins should be displayed by name collected from native metadata or filename.

Today, this could be achieved by sorting plugins using the table view.

A more user friendly solution can be considered

• Creating a new dedicated view (or replace the "List" tab which is just a flat list of plugins)
• Add a display option in the table view for grouping