(client) feat:右键菜单全局与UI分离，Building生成支持，双层地图重写

Client/Assets/Scripts/Entity/Building.cs

@@ -0,0 +1,36 @@
+using Base;
+using Data;
+using UnityEngine;
+
+namespace Entity
+{
+    public class Building:Entity
+    {
+        public override void SetTarget(Vector3 pos)
+        {
+        }
+
+        protected override void UpdatePlayerControls()
+        {
+            if (Input.GetKeyDown(KeyCode.W))
+            {
+                transform.position += Vector3.up;
+            }
+
+            if (Input.GetKeyDown(KeyCode.A))
+            {
+                transform.position += Vector3.left;
+            }
+
+            if (Input.GetKeyDown(KeyCode.S))
+            {
+                transform.position += Vector3.down;
+            }
+
+            if (Input.GetKeyDown(KeyCode.D))
+            {
+                transform.position += Vector3.right;
+            }
+        }
+    }
+}