ICM - correct mesh errors

This post is part of a series of articles about modeling coupled 1D / 2D river and urban water and models optimizations 2D modeling are consuming resources and computing time, it is therefore essential to work with own grids, and optimize them. This requires the following checks: avoid computational elements uselessely too small, ie which do not provide relevant information for the purpose of the study. This point is important, it is in fact the size of the smallest element of calculation...