Faster construction of irreducible representations of the symmetric group

[jdbancal]

See https://sage.math.leidenuniv.nl/src/combinat/yang_baxter_graph.py

based on

• A. Lascoux, "Youngs's representations of the symmetric group," in Symmetry and Structural Properties of Condensed Matter, 0 vols., WORLD SCIENTIFIC, 2001, pp. 94–104.