Add data components 151-175; clear MyGo row highlights

Lists, tables, trees, grids, inventories and records in data/.
Outline and GridView build on ui.List: ui.Outline strokes its arrows
and ui.GridView spaces and tints items. The pixel theme keeps MyGo's
row highlights clear so scrolled rows stay on whole dots; off lists
take a veil against the wheel. Adds Canvas.Silhouette, SwitchOptions
Label and exports Rarity.Slot.

display/internal_test.go

@@ -86,5 +86,5 @@ func TestExtremesAndNames(t *testing.T) {
 			t.Fatal("unknown rarity did not panic")
 		}
 	}()
-	Rarity(9).slot()
+	Rarity(9).Slot()
 }