Avoid forcing installation location

This does not change anything since Minf in the viscous solver is only used to compute the time step

Modified file include accordingly

Results are very close on Mac and ubuntu. Agard test number of iterations is 9 if linear solver is GMRES and 4 if PARDISO. Lift and drag do not change significantly.

The test values are different from mac to ubuntu  which is probably related to version difference (python, numpy, scipy, swig and probably others are different).

 - Revert default value of span. - Removed api test for 3D because it could lead to issues when ctests run in parallel (tests would open the same files at the same time which would cause high latency. - Fixed values of Rae 3D case wrt to previous fix

Plus fixed a bug that would set span to 0

Small modifs on validation cases and add them to the validation job on the pipeline

There geo file for naca 0012 was updated by adding the growth ratio as input parameter instead of the farfield mesh size.

Pipeline should fail

Refactor api + updated tests with mode updater and added scalers