add 新增远程连接，实现多人游戏

Scenes/ChessGame.tscn

@@ -0,0 +1,38 @@
+[gd_scene load_steps=3 format=3 uid="uid://g40y10iaf7qb"]
+
+[ext_resource type="Script" path="res://Scripts/Controllers/ChessGame.cs" id="1_3x8ac"]
+[ext_resource type="PackedScene" uid="uid://b1tx7v3230wab" path="res://Scenes/Entities/Chessboard.tscn" id="1_yheur"]
+
+[node name="ChessGame" type="Node2D"]
+script = ExtResource("1_3x8ac")
+
+[node name="Chessboard" parent="." instance=ExtResource("1_yheur")]
+position = Vector2(360, 660)
+scale = Vector2(2.5, 2.5)
+
+[node name="Undo" type="Button" parent="."]
+offset_left = 200.0
+offset_top = 50.0
+offset_right = 300.0
+offset_bottom = 150.0
+theme_override_font_sizes/font_size = 32
+text = "撤回"
+
+[node name="ReInit" type="Button" parent="."]
+offset_left = 450.0
+offset_top = 50.0
+offset_right = 550.0
+offset_bottom = 150.0
+theme_override_font_sizes/font_size = 32
+text = "重开"
+
+[node name="Home" type="Button" parent="."]
+offset_left = 310.0
+offset_top = 1108.0
+offset_right = 412.0
+offset_bottom = 1226.0
+text = "返回主页"
+
+[connection signal="pressed" from="Undo" to="." method="Undo"]
+[connection signal="pressed" from="ReInit" to="." method="ReInit"]
+[connection signal="pressed" from="Home" to="." method="GoHome"]