Code Tests: Integration/ Unit

[ssolson]

I am going to start writing tests for this toolbox. My plan is to start by converting the examples into integration and unit test:

• example_ContourApproach.py
• example_envSampling.py
• example_fatigue.py
• example_longTermFullSeaState.py
• example_MLER_testrun.py
• example_shortTermExtreme.py
• example_shortTermExtreme2.py
• example_shortTermExtreme3.py