Split Enums, Structs & Classes into own files

Raylib-cs/Material.cs

@@ -0,0 +1,27 @@
+using System;
+using System.Runtime.InteropServices;
+
+namespace Raylib_cs
+{
+    /// <summary>
+    /// Material type (generic)
+    /// </summary>
+    [StructLayout(LayoutKind.Sequential)]
+    public struct Material
+    {
+        /// <summary>
+        /// Material shader
+        /// </summary>
+        public Shader shader;
+
+        /// <summary>
+        /// Material maps (MaterialMap *)
+        /// </summary>
+        public IntPtr maps;
+
+        /// <summary>
+        /// Material generic parameters (if required, float *)
+        /// </summary>
+        public IntPtr param;
+    }
+}