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add some get function in Pickable
add color & precision in LineDrawable

add Texture class
add texture example
add 2 shader with texture

add copy constructor from different type in Geom::Vector

resolution bug inversion frame avec size negative
amelioration affichage frame manip

amelioration picking translation
bug IcoSphere(1) dans Pickable

assert execute uniquement si cmake -DASSERTON=true

Ajout du define TOPO_MAP dans EmbededMap
Petite modif dans importTet

remove vbo unbinding in shader (was only called when VBO was destructed,
shader is then invalid or destructed just after)

=> remove the bug of Drawer delete

Add pickable object for interface (try frame_manip example)
Add frame manipulator
Add GL matrices access from static GLSLShader