Find the intersections between multiple curves.

Input parameters:

1. Cr → Curves to intersect with each other.

Output parameters:

1. Pt → Intersection points of each curve with all subsequent curves.
2. I1 → Curve index of first curve for every intersection.
3. I2 → Curve index of second curve for every intersection.
4. L1 → Locus on first curve for every intersection.
5. L2 → Locus on second curve for every intersection.