Optimize intersection feature for Quadratic Bezier curves

[rBazan98]

This approach determines intersections of two Quadratic Bezier curves by directly solving the parametric equations for Cartesian coordinates associated with each Bezier curve instead of finding intersections by interpolation.

Notation used is as follows:

• 'xn' and 'yn' represents coordinates of each control points 0, 1, and 2.
• Parametric forms of coordinates used: X = At^2 + Bt + x0 and Y = Ct^2 + Dt + y0.
• Equation at^4 + bt^3 + ct^2 + d = 0 identifies intersections as roots.