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- Adapt channel interpolated nodes based on the new v2_potential_breach table
(only if the table exists).
- Adapt 1D-2D lines generation to v2_exchange_line table. Breaches are not implemented
in that case. If there are no excange lines (or the table is missing),
v2_connected_points are still used and breaches still work.
- Add TABULATED_YZ (7) and INVERTED_EGG (8) cross section shapes. Both are converted
to tabulated trapezium.