Maila 24 add car mode to simulation

[ValerioMagnago]

I gimped a top-down view of the image and created a mask that is used from stage to define our car footprint.

In the centre of the car there is a hole that has an arrow shape that it can be useful to understand which is the front and which is the rear of the car without looking at the bumpers 🤯

On top of the car we have a 360 2D lidar with a range of 11 m and a frequency of 10 Hz.

The 3D view is bad but we do not care about the car profile on the z-axis too much since we are playing with a 2D simulation :)

To test this:

• clan all the package in src
• clone the maila_2D_sim
• open the container inside vscode and wait the dependencies to be installed
• ./build.sh and source ./install/setup.bash
• ros2 launch maila_2d_sim sim.launch.py