Fancy Verb Menu & Verb API Refactor (#928)

Content.Shared/GameObjects/Verbs/VerbCategories.cs

@@ -0,0 +1,13 @@
+namespace Content.Shared.GameObjects
+{
+    /// <summary>
+    ///     Standard verb categories.
+    /// </summary>
+    public static class VerbCategories
+    {
+        public static readonly VerbCategoryData Debug =
+            ("Debug", "/Textures/UserInterface/VerbIcons/debug.svg.96dpi.png");
+
+        public static readonly VerbCategoryData Rotate = ("Rotate", null);
+    }
+}