Visualize uncertainty in liftdrag plot

[Jaeyoung-Lim]

Problem Description This is a follow up PR of https://github.com/ethz-asl/data-driven-dynamics/pull/227

Visualize uncertainty of the identified lift drag model, based on the Cramer-Rao bounds

• Linear Liftdrag
• $\Phi$ - Aerodynamics

[Jaeyoung-Lim]

@manumerous Thanks!

[sfuhrer]

Nice!