Add a rotational dynamics example

[gaffarelj]

An example should be added that demonstrated how to propagate rotational dynamics. Ideally, the followings should be included:

• [ ] Torque from the environment (Spherical Harmonics for instance).
• [ ] Torque from some kind of RCS thruster/momentum wheel (from the vehicle itself).
• [ ] Rotation from aerodynamics moment coefficient.
• [ ] Initial angular velocity.
• [ ] Incorporate thrust (and even TVC?) based on the vehicle orientation.

[gaffarelj]

This example will be useful to test/showcase new functions to visualise the orientation history of a vehicle.

This example should be split in two distinct examples: one with the propagation of a body such as a moon, and one with the propagation of a vehicle (for instance the rotational propagation of a satellite in an elliptic orbit, then the same but adding translational dynamics propagation).

Before starting implementing this example, the upcoming orientation refactoring should be finished first.