randomCurveGenus10Degree13InP4 -- general curve in P^4 of genus 10 and degree 13

The function constructs a curve E of genus 10 on P¹ x P² via liaison techniques together with P=5 points on E, then embeds E in P⁴ via the complete linear system |K-P|. This construction is proven to be unirational and gives hence rise to a general curve of genus 10 and degree 13