4.3.0

* libpng was updated to version 1.4.2
* libjpeg was updated to version 8b
* zlib was updated to version 1.2.5
* FreeType 2.3.12 support (first support)
* 3D primitive drawing: torus, sphere, cube, cylinder and cone
* Light functions (diffuse, specular, spot) + ambient
* Splitted functions for rotation/translation/scaling 3d object.


Here is the list a new added samples demo code :
3d_light1 -> Simple Diffuse light sample code
3d_light2 -> Simple Lights and GRRLIB_ObjectViewInv sample
3d_light3 -> A little Specular light sample code
3d_light4 -> Spot Light Sample Code
3D_sample5 -> Simple demo of  rotation/translation/scaling 3d object.
ttf -> TrueType Font demo