aerodynamics

Not so long ago, we had #140 solving bugs regarding airfoil implementation.
It's true that now rocketpy is dealing very well with these non-flat fins, however I feel we could implement some plots in rocket.py file to show to the user.

Some of them could be:

• Simple plot of airfoil data the user inputed by addFins() method
• Derivative of Lift coefficient by angle of attack

But of course

The docs were kind of stitched together from a variety of ideas at different times.
Go through these docs holistically and update / rearrange as necessary.

We should make sure that all the integration tests compare output against expected results. This means getting rid of all the "test_method_does_not_throw" tests.

We could also implement PyTests or some other methodology with a simpler syntax.

Accounting for powered landing is important in this day and age (Thank you SpaceX 👾 !) ✨

I was not aware that one could extrapolate with interp1d.

This could be a flag of the solver, not an automatic feature.

It is healthy to know when things break, and only then to decide what to do about them.