feat: expose Revision Cloud in the Draw expansion

src/ui/ribbon/draw_tools/13_revcloud.rs

@@ -0,0 +1,10 @@
+Tool {
+    command: "REVCLOUD",
+    label: "Revision Cloud",
+    icon: include_bytes!(concat!(env!("CARGO_MANIFEST_DIR"), "/assets/icons/revcloud.svg")),
+    options: &[
+        ("REVCLOUD_RECTANGULAR", "Rectangular"),
+        ("REVCLOUD_POLYGONAL", "Polygonal"),
+        ("REVCLOUD_FREEHAND", "Freehand"),
+    ],
+}