add vcglib

vcglib/wrap/openfbx/README.md

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+[![Gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/nem0/LumixEngine?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
+[![License](http://img.shields.io/:license-mit-blue.svg)](http://doge.mit-license.org)
+
+# OpenFBX
+
+Lightweight open source FBX importer. Used in [Lumix Engine](https://github.com/nem0/lumixengine). It's not a full-featured importer, but it suits all my needs. It can load geometry (with uvs, normals, tangents, colors), skeletons, animations, materials and textures. 
+
+Feel free to request new features. I will eventually try to add all missing fbx features.
+
+## Use the library in your own project
+
+Note: It's recommended to be familiar with fbx format to use this library, you can read about it more [here](http://help.autodesk.com/view/FBX/2017/ENU/?guid=__files_GUID_F194000D_5AD4_49C1_86CC_5DAC2CE64E97_htm).
+
+1. add files from src to your project
+2. use
+
+See [demo](https://github.com/nem0/OpenFBX/blob/master/demo/main.cpp#L203) as an example how to use the library.
+See [Lumix Engine](https://github.com/nem0/LumixEngine/blob/master/src/renderer/editor/import_asset_dialog.cpp#L504) as more advanced use case.
+
+## Compile demo project
+
+1. download source code
+2. execute [projects/genie_vs15.bat](https://github.com/nem0/OpenFBX/blob/master/projects/genie_vs15.bat)
+3. open projects/tmp/vs2015/OpenFBX.sln in Visual Studio 2015
+4. compile and run
+
+Demo is windows only. Library is multiplatform.
+
+![ofbx](https://user-images.githubusercontent.com/153526/27876079-eea3c872-61b5-11e7-9fce-3a7c558fb0d2.png)