Automate examples for testing

[dzalkind]

Major Changes:

• Examples/run_examples.py is set up to run the examples all at once
• This testing uncovered that there was a mismatch in array length between the pitch angles in the gain scheduling and the PI gains. controller.py was updated to make the lengths consistent.

Minor Changes:

• Outputs of examples are added to Examples/examples_out/ as pictures for quick reviewing

Testing:

• run python Examples/run_examples.py or python -m unittest ... or pytest Examples/run_examples.py

Note: they are set up as one example in

[nikhar-abbas]

Looks good to me!