add %% capture to pip install in notebooks

docs/notebooks/BastankhahGaussian.ipynb

docs/notebooks/Hornsrev1Site.ipynb

docs/notebooks/IEA37SimpleBastankhahGaussian.ipynb

docs/notebooks/IEA37Site.ipynb

docs/notebooks/IEA37Turbine.ipynb

docs/notebooks/V80.ipynb

docs/notebooks/cmp_wakemodels.ipynb

docs/notebooks/fuga.ipynb

docs/notebooks/hornsrev_layout_optimization_exercise.ipynb

docs/notebooks/noj.ipynb

docs/notebooks/noj_validation_exercise.ipynb

docs/notebooks/noj_validation_exercise_solution.ipynb