Format python: Tests/.

Tests/Data/Elliptic/cube_1x1x1_SteadyStateDiffusion/cube.py

.../square_1x1_SteadyStateDiffusion_Python/bcs_laplace_eq.py

...x1_SteadyStateDiffusion_Python/sin_x_sin_y_source_term.py

Tests/Data/EllipticPETSc/square_1e1_neumann-insitu.py

...tates/soil_column_nonequilibrium_sigma_generate_values.py

...ta/Mechanics/Linear/PythonHertzContact/gen-unit-circle.py

...a/Mechanics/Linear/PythonHertzContact/hertz_contact_bc.py

Tests/Data/Mechanics/Linear/PythonHertzContact/post.py

Tests/Data/Mechanics/Linear/PythonPiston/chamber.py

Tests/Data/Mechanics/Linear/PythonPiston/piston_bc.py

Tests/Data/Mechanics/Linear/PythonPiston/post.py

Tests/Data/Parabolic/T/1D_neumann/plotLine.py

Tests/Data/Parabolic/T/1D_neumann/temperature_analytical.py

Tests/Data/Parabolic/T/3D_3BHEs_array/bcs_tespy.py

...s/Data/Parabolic/T/3D_3BHEs_array/bcs_tespy_closedloop.py

Tests/Data/Parabolic/T/3D_3BHEs_array/pre/3bhes.py

...s/Data/Parabolic/T/3D_3BHEs_array/pre/3bhes_closedloop.py

Tests/Data/ThermoMechanics/BDT/generate_ref.py