Both UIs need the same stoplight/PDF/error/series icons. WinForms selected
pre-baked PNGs by name while Avalonia composed vector layers in XAML, so the
two drifted and every new combination needed another pair of PNGs.
Port the Avalonia artwork and palette into LibationUiBase and rasterize it with
SkiaSharp, keyed by a descriptor of the finite combinations and cached in memory.
EntryStatus.ButtonImage now serves that shared rendering to both UIs.
Co-authored-by: rmcrackan <rmcrackan@gmail.com>
Use existing BaseUtil.LoadImage delegate, obviating need for derrived classes to load images
Since GridEntry types are no longer generic, interfaces are unnecessary and deleted.
