Buf3D 3d and lego model viewer

Apr 2, 2016

* Export to jpg images by tiled rendering

* Support to explore & use zip files
* Other improvements in model search
* Memory improvements
* Updated Support for VexIQ Robotics parts (thanks to Philippe Hurbain and Petr Nejedlý )
* Custom Libraries support (Buf3D+ only)
* Export to MPD
* Improvements in export to LDR (include steps)
* Memory reduction loading lego models
* MSAA Antialiasing