daily update on 20240213 by nitload youmu. 逐步弃用GLFW，正在使用wgl重写glfw底层，相关实现转移到C#实现，SSC彻底变成线性代数计算器。

源代码/StgSharp/Graphics/GL/Buffer/EBO.cs

@@ -14,7 +14,7 @@ namespace StgSharp.Graphics
     /// Each <see langword="int"/> value indexed from instance of this class this 
     /// is the only handle to one Element Buffer Object.
     /// </summary>
-    public unsafe class ElementBuffer : IBufferObject
+    public unsafe class ElementBuffer : BufferObjectBase
     {
         internal ElementBuffer(int n, IglFunc gl)
         {
@@ -22,10 +22,6 @@ namespace StgSharp.Graphics
             _bufferHandle = GL.GenBuffers(n);
         }
 
-        public glHandle this[int n]
-        {
-            get { return _bufferHandle[n]; }
-        }
 
         public override void Bind(int index)
         {