Reorganize types

- Move into types folder
- Group types based on usage

Raylib-cs/types/Model.cs

@@ -0,0 +1,100 @@
+using System;
+using System.Numerics;
+using System.Runtime.InteropServices;
+
+namespace Raylib_cs
+{
+    /// <summary>
+    /// Bone information
+    /// </summary>
+    [StructLayout(LayoutKind.Sequential)]
+    public struct BoneInfo
+    {
+        /// <summary>
+        /// Bone name (char[32])
+        /// </summary>
+        public IntPtr name;
+
+        /// <summary>
+        /// Bone parent
+        /// </summary>
+        public int parent;
+    }
+
+    /// <summary>
+    /// Model type
+    /// </summary>
+    [StructLayout(LayoutKind.Sequential)]
+    public struct Model
+    {
+        /// <summary>
+        /// Local transform matrix
+        /// </summary>
+        public Matrix4x4 transform;
+
+        /// <summary>
+        /// Number of meshes
+        /// </summary>
+        public int meshCount;
+
+        /// <summary>
+        /// Number of materials
+        /// </summary>
+        public int materialCount;
+
+        /// <summary>
+        /// Meshes array (Mesh *)
+        /// </summary>
+        public IntPtr meshes;
+
+        /// <summary>
+        /// Materials array (Material *)
+        /// </summary>
+        public IntPtr materials;
+
+        /// <summary>
+        /// Mesh material number (int *)
+        /// </summary>
+        public IntPtr meshMaterial;
+
+        /// <summary>
+        /// Number of bones
+        /// </summary>
+        public int boneCount;
+
+        /// <summary>
+        /// Bones information (skeleton, BoneInfo *)
+        /// </summary>
+        public IntPtr bones;
+
+        /// <summary>
+        /// Bones base transformation (pose, Transform *)
+        /// </summary>
+        public IntPtr bindPose;
+    }
+
+    /// <summary>Model animation</summary>
+    [StructLayout(LayoutKind.Sequential)]
+    public struct ModelAnimation
+    {
+        /// <summary>
+        /// Number of bones
+        /// </summary>
+        public int boneCount;
+
+        /// <summary>
+        /// Number of animation frames
+        /// </summary>
+        public int frameCount;
+
+        /// <summary>
+        /// Bones information (skeleton, BoneInfo *)
+        /// </summary>
+        public IntPtr bones;
+
+        /// <summary>
+        /// Poses array by frame (Transform **)
+        /// </summary>
+        public IntPtr framePoses;
+    }
+}