#24 Texture Atlas : Vertex Generation works

- vertex positions are correctly generated from the texture
- a vertex array object will be generated from the vertex positions
- both will be generated before application enters the main loop
#24 Texture Atlas : Rendering works

- added Renderpass & shader to put vertices, transformed by textureAtlas
ontop of scene
- had to change the internal format of Framebuffer Object is important
for this one
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