Update demo project

Author: mphe

demo/project.godot

@@ -19,6 +19,11 @@ _global_script_classes=[ {
 "language": "GDScript",
 "path": "res://addons/ropesim/RopeAnchor.gd"
 }, {
+"base": "Node",
+"class": "RopeCollisionShapeGenerator",
+"language": "GDScript",
+"path": "res://addons/ropesim/RopeCollisionShapeGenerator.gd"
+}, {
 "base": "Position2D",
 "class": "RopeHandle",
 "language": "GDScript",
@@ -37,6 +42,7 @@ _global_script_classes=[ {
 _global_script_class_icons={
 "Rope": "",
 "RopeAnchor": "",
+"RopeCollisionShapeGenerator": "",
 "RopeHandle": "",
 "RopeRendererLine2D": "",
 "RopeToolHelper": ""