ENH: plot inertia tensor components in a single plot

[Gui-FernandesBR]

Is your feature request related to a problem? Please describe.

It's annoying to see 6 different plots describing the inertia tensor of a motor or a rocket.
Since the measurement unit is the common to all the components, we could easily visualize all of them in a single plot.
This would allow for a clearer visualization when using the all_info methods.

Describe the solution you'd like

• Use the Function.compare_plots method to generate a single plot instead of invoking the plot method different times (see image below).
• Check if there's no noticeable problem with overlap lines (maybe we could change the style of each line).