Add skin property image.frames and image.index.

Assets/Cryville/Crtr/Components/SpriteText.cs

@@ -77,7 +77,6 @@ namespace Cryville.Crtr.Components {
 			verts.Clear();
 			uvs.Clear();
 			foreach (var f in m_frames) {
-				f.Value.Load();
 				if (frameHeight == 0) frameHeight = f.Value.Rect.height;
 				else if (frameHeight != f.Value.Rect.height) throw new Exception("Inconsistent frame height for text component");
 				var tex = f.Value.Frame.Texture;