Very basic program that draws an isometric grid.
Uses a custom library (written by 42's staff) that only allows to draw one pixel at a time.
I had to come up with the grid drawing algorithm myself.
Grid of space separated integers.
o--------------------> X-axis
| N N N N N N ...
| N N N N N N ...
| N N N N N N ...
| N N N N N N ...
| ...............
V
Y-axis
Where each N is a Z-axis altitude
