#29 Debuggage equation seuil triangulaire tronqué + calcul de l'aire

spec/structure/parallel_structure.spec.ts

spec/structure/structure_test.ts

spec/structure/structure_triangular_trunc_weir_free.spec.ts

spec/structure/structure_triangular_weir_free.spec.ts

src/structure/factory_structure.ts

src/structure/parallel_structure_params.ts

src/structure/rectangular_structure.ts

src/structure/structure.ts

src/structure/structure_kivi.ts

src/structure/structure_props.ts

src/structure/structure_triangular_trunc_weir_free.ts

src/structure/structure_triangular_trunc_weir_free_params.ts

src/structure/structure_triangular_weir_free.ts

src/structure/structure_triangular_weir_free_params.ts

src/structure/triangular_structure.ts