devlog #4 => rendering the plane and controlling it

in this devlog, i finally got the plane rendering properly and responding clearly the controls without getting the velocity infinite.
added green lines on the ground to make it like 3D
currently, it has the simple static camera following the plane, but in the future it will be variable, to give the sense of the plane moving and not only the background.
i added input ramping for the keyboard controls to give fluidity to the plane (previously it look like that the plane was moving too fast).
i switched from the Euler angles to quaternions, because in the euler angles, when pitch reaches +/- 90 degrees yaw and roll become the same degree of freedom and the representation breaks.
currently, i plan to add enemys, projectiles for the plane and multiplayer support, maybe custom planes.