make sure to re-orient 2D mesh before meshing in 3D (fixes e.g. bug when 2D Frontal leaves badly oriented elements, that 3D frontal cannot handle)

Sigh++

Sigh...

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Previous version still used...

Added fall back to uniform distribution of high-order nodes in parametric space if computation of equidistant distribution in physical space fails on model edges

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geometry. It introduces subtle bugs when reading high-order post-processing views.

IMHO we should have an explicit command to do this, and not modify the mesh without
warning just by reading a file

use same tolerance in mesh extrusion as in geometry ; if this tol is too large, we should introduce another option

Replaced MVertexPositionSet with MVertexRTree ; use MVertexRTree in all extrusion algorithms instead of the (incorrect) std::set<MVertex, MVertexLessThanLexicographic>