v1.01.278 ERREU04 - Simple singularity detection in exploded commands

Summary:

This test validates the emission of an error message when a simple singularity is detected (absent or overabundant blocking) by the direct linear solvers (MUMPS, LDLT and MULT_FRONT) used in exploded commands (FACTORISER, RESOUDRE).

• 1. Principle of the test