add tween test

Example/Tween/EGTween.tscn

@@ -0,0 +1,29 @@
+[gd_scene load_steps=2 format=3 uid="uid://1garq2laye1n"]
+
+[ext_resource type="Script" path="res://Example/Tween/Script/TweenTest.cs" id="1_jpym0"]
+
+[node name="EgTween" type="Control" node_paths=PackedStringArray("Target")]
+layout_mode = 3
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+script = ExtResource("1_jpym0")
+Target = NodePath("ColorRect")
+
+[node name="ColorRect" type="ColorRect" parent="."]
+layout_mode = 1
+anchors_preset = 8
+anchor_left = 0.5
+anchor_top = 0.5
+anchor_right = 0.5
+anchor_bottom = 0.5
+offset_left = -20.0
+offset_top = -20.0
+offset_right = 20.0
+offset_bottom = 20.0
+grow_horizontal = 2
+grow_vertical = 2
+rotation = 1.14319
+pivot_offset = Vector2(20, 20)

Example/Tween/Script/TweenTest.cs

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+using Godot;
+using System;
+namespace EGFramework.Examples.TweenAnime{
+	public partial class TweenTest : Node
+	{
+		[Export] ColorRect Target {set;get;}
+		// Called when the node enters the scene tree for the first time.
+		public override void _Ready()
+		{
+			Tween tween = GetTree().CreateTween();
+			tween.TweenProperty(Target,"color",Colors.Red,1.0f);
+			tween.TweenProperty(Target,"color",Colors.Green,1.0f);
+			tween.TweenProperty(Target,"color",Colors.Blue,1.0f);
+			tween.SetLoops();
+
+			// Tween tween2 = GetTree().CreateTween();
+			// tween2.TweenProperty(Target,"position",new Vector2(100,0),1.0f);
+			// tween2.TweenProperty(Target,"position",new Vector2(100,100),1.0f);
+			// tween2.TweenProperty(Target,"position",new Vector2(0,100),1.0f);
+			// tween2.TweenProperty(Target,"position",new Vector2(0,0),1.0f);
+			// tween2.TweenCallback(Callable.From(TweenOver));
+			// tween2.SetLoops();
+
+			Tween tween3 = GetTree().CreateTween();
+			tween3.TweenProperty(Target,"size",new Vector2(100,40),0.5f);
+			tween3.TweenProperty(Target,"size",new Vector2(40,100),0.5f);
+			tween3.TweenProperty(Target,"size",new Vector2(40,40),0.5f);
+			tween3.SetLoops();
+		}
+
+		public void TweenOver(){
+			GD.Print("----end----");
+		}
+
+		// Called every frame. 'delta' is the elapsed time since the previous frame.
+		public override void _Process(double delta)
+		{
+		}
+	}
+}
+