Warning of ill-conditioned matrix only showed in terminal

[eivindjahren]

The following warning is shown for the update step sometimes:

iterative_ensemble_smoother/esmda_inversion.py:229: Lin
AlgWarning: Ill-conditioned matrix (rcond=1.00742e-17): result may not be accurate.
  T = sp.linalg.solve(C_DD, D - Y, **solver_kwargs)

It seems to be neither logged nor displayed in any way in the gui, although it may cause the resulting update to be inaccurate.

This situation may arise from differing magnitude of numbers between realizations. It might be that we want to implement outlier detection to reduce how often this happens.

Can be reproduced with the following setup: https://github.com/eivindjahren/ert/tree/update_err_msgs/test-data/ert/counter_examples/ill-conditioned-matrix-0