KiCad Support
Added support for KiCad schematic and PCB file formats in Visual file view and Visual diffing.

Annotations
Added support for interactive in-app Annotations.

Unified Diff View
Added a new Diff view so you can visually review changes to clearly see every single change using a toggle between latest and old.

Layers Management
Added layers management to design and diff view. Now you can toggle layers on and off for better view.
