Add the displaying of level 1 (leaf = 1 cube)
Separate the main.cpp of display in lvl_displaying.cpp file
Separate the main.cpp of display in memory_cache.cpp file
Add Chunk structure
Add function to compute distance between a leaf an the camera
Replace the map memory by a vector memory
Upgrade the loadInMemory() function to work with a sorted vector
Upgrade the freeInMemory() function to work with sorted vector
Upgrade display_lvl1() function to work with sorted vector
Upgrade display_lvl2() function to work with sorted vector
Add the initialisation of the memory cache (initMemory() function)
added frustum data to FFCam, compute far and near plane centers
Add a boolean array which references the loaded leaf
Add the displaying of the leaves grid considering their distance to the camera + dynamic loading and free on the memory
Add the sort function of Chunks
add frustum culling on top - right - bottom - left planes of the frustum, miss far and near planes
modif display
merge chuncked_display and frustum culling
corrected frustum issue in TrackBall cam mode
cleaning of the code