Add VisualShape2D demo

See goostengine/goost#2.

2d/visual_shapes/concave_polygon.tres

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+[gd_resource type="ConcavePolygonShape2D" format=2]
+
+[resource]
+segments = PoolVector2Array( -128, -128, -64, -152, -64, -152, 104, -56, 104, -56, 200, -64, 200, -64, 240, -56, 240, -56, 264, -8, 264, -8, 320, 40, 320, 40, 224, 160, 224, 160, 168, 104, 168, 104, 144, 152, 144, 152, 88, 40, 88, 40, 56, 80, 56, 80, 16, 8, 16, 8, -32, 24, -32, 24, -64, -56, -64, -56, -88, 8, -88, 8, -96, -56, -96, -56, -200, -8, -200, -8, -168, -80, -168, -80, -128, -128 )

2d/visual_shapes/convex_polygon.tres

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+[gd_resource type="ConvexPolygonShape2D" format=2]
+
+[resource]
+points = PoolVector2Array( 32, 16, 0, -32, -32, 16 )

2d/visual_shapes/icon.png.import

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+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/icon.png-487276ed1e3a0c39cad0279d744ee560.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://icon.png"
+dest_files=[ "res://.import/icon.png-487276ed1e3a0c39cad0279d744ee560.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=true
+svg/scale=1.0

2d/visual_shapes/project.godot

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+; Engine configuration file.
+; It's best edited using the editor UI and not directly,
+; since the parameters that go here are not all obvious.
+;
+; Format:
+;   [section] ; section goes between []
+;   param=value ; assign values to parameters
+
+config_version=4
+
+_global_script_classes=[  ]
+_global_script_class_icons={
+
+}
+
+[application]
+
+config/name="Goost Visual Shapes"
+run/main_scene="res://visual_shapes.tscn"
+boot_splash/image="res://icon.png"
+boot_splash/fullsize=false
+config/icon="res://icon.png"
+
+[physics]
+
+2d/default_gravity=700

2d/visual_shapes/visual_shapes.tscn

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+[gd_scene load_steps=13 format=2]
+
+[ext_resource path="res://concave_polygon.tres" type="Shape2D" id=1]
+
+[sub_resource type="RectangleShape2D" id=1]
+extents = Vector2( 200, 50 )
+
+[sub_resource type="CircleShape2D" id=2]
+radius = 40.0
+
+[sub_resource type="RectangleShape2D" id=3]
+extents = Vector2( 200, 50 )
+
+[sub_resource type="CircleShape2D" id=4]
+radius = 44.0
+
+[sub_resource type="PhysicsMaterial" id=5]
+bounce = 1.0
+
+[sub_resource type="CapsuleShape2D" id=6]
+radius = 20.0
+
+[sub_resource type="PhysicsMaterial" id=7]
+bounce = 0.6
+
+[sub_resource type="RectangleShape2D" id=8]
+extents = Vector2( 32, 32 )
+
+[sub_resource type="SegmentShape2D" id=9]
+a = Vector2( 150, 0 )
+b = Vector2( 0, 100 )
+
+[sub_resource type="RectangleShape2D" id=10]
+extents = Vector2( 150, 64 )
+
+[sub_resource type="Animation" id=11]
+loop = true
+tracks/0/type = "value"
+tracks/0/path = NodePath("ghost_shape:color")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/keys = {
+"times": PoolRealArray( 0, 0.5 ),
+"transitions": PoolRealArray( 1, 1 ),
+"update": 0,
+"values": [ Color( 1, 1, 1, 0.184314 ), Color( 1, 1, 1, 0.572549 ) ]
+}
+
+[node name="visual_shapes" type="Node2D"]
+
+[node name="rectangle_left" type="StaticBody2D" parent="."]
+position = Vector2( 221, 210 )
+rotation = 0.448909
+
+[node name="collision" type="CollisionShape2D" parent="rectangle_left"]
+shape = SubResource( 1 )
+
+[node name="shape" type="VisualShape2D" parent="rectangle_left/collision"]
+shape = SubResource( 2 )
+use_parent_shape = true
+color = Color( 0.721569, 0.760784, 0.34902, 1 )
+
+[node name="rectangle_right" type="StaticBody2D" parent="."]
+position = Vector2( 688, 184 )
+rotation = -0.748333
+
+[node name="collision" type="CollisionShape2D" parent="rectangle_right"]
+shape = SubResource( 3 )
+
+[node name="shape" type="VisualShape2D" parent="rectangle_right/collision"]
+use_parent_shape = true
+color = Color( 0.721569, 0.760784, 0.34902, 1 )
+
+[node name="concave" type="StaticBody2D" parent="."]
+position = Vector2( 216, 416 )
+
+[node name="collision" type="CollisionShape2D" parent="concave"]
+shape = ExtResource( 1 )
+__meta__ = {
+"_edit_lock_": true
+}
+
+[node name="shape" type="VisualShape2D" parent="concave/collision"]
+shape = ExtResource( 1 )
+use_parent_shape = true
+color = Color( 0.721569, 0.760784, 0.34902, 1 )
+
+[node name="circle" type="RigidBody2D" parent="."]
+position = Vector2( 108, 48 )
+
+[node name="collision" type="CollisionShape2D" parent="circle"]
+shape = SubResource( 4 )
+__meta__ = {
+"_edit_lock_": true
+}
+
+[node name="shape" type="VisualShape2D" parent="circle/collision"]
+use_parent_shape = true
+color = Color( 0.945098, 0.219608, 0.219608, 1 )
+
+[node name="capsule" type="RigidBody2D" parent="."]
+position = Vector2( 160, 304 )
+physics_material_override = SubResource( 5 )
+
+[node name="collision" type="CollisionShape2D" parent="capsule"]
+shape = SubResource( 6 )
+__meta__ = {
+"_edit_lock_": true
+}
+
+[node name="shape" type="VisualShape2D" parent="capsule/collision"]
+use_parent_shape = true
+color = Color( 0.921569, 0.219608, 0.945098, 1 )
+
+[node name="triangle" type="RigidBody2D" parent="."]
+position = Vector2( 184, -120 )
+physics_material_override = SubResource( 7 )
+
+[node name="collision" type="CollisionPolygon2D" parent="triangle"]
+polygon = PoolVector2Array( 0, -32, -32, 24, 32, 24 )
+
+[node name="shape" type="VisualShape2D" parent="triangle/collision"]
+use_parent_shape = true
+color = Color( 0.447059, 0.858824, 0.0392157, 1 )
+__meta__ = {
+"_editor_description_": "Note that  it's possible to edit the polygon shape through this node, as long as the resource is saved on disk and shared between this shape and collision shape node."
+}
+
+[node name="box" type="RigidBody2D" parent="."]
+position = Vector2( 315.811, 92.517 )
+
+[node name="collision" type="CollisionShape2D" parent="box"]
+shape = SubResource( 8 )
+__meta__ = {
+"_edit_lock_": true
+}
+
+[node name="shape" type="VisualShape2D" parent="box/collision"]
+use_parent_shape = true
+color = Color( 0.0313726, 0.494118, 0.831373, 1 )
+
+[node name="segment" type="StaticBody2D" parent="."]
+position = Vector2( 584, 472 )
+
+[node name="collision" type="CollisionShape2D" parent="segment"]
+shape = SubResource( 9 )
+__meta__ = {
+"_edit_lock_": true
+}
+
+[node name="shape" type="VisualShape2D" parent="segment/collision"]
+use_parent_shape = true
+color = Color( 0.768627, 0.741176, 0.345098, 1 )
+
+[node name="ghost_shape" type="VisualShape2D" parent="."]
+position = Vector2( 696, 432 )
+shape = SubResource( 10 )
+color = Color( 1, 1, 1, 0.184314 )
+
+[node name="anim" type="AnimationPlayer" parent="."]
+autoplay = "banner"
+anims/banner = SubResource( 11 )