Create issues for missing functions

[Korijn]

To do:

• Go through the documentation linked below
• Determine which functions we still would like to add to pylinalg
• Create a new issue for each function we would like to add
• Include name and ideally also propose a signature

Links:

https://threejs.org/docs/index.html

• Core
  • Raycaster
• Extras
  • ShapeUtils
• Extras / Core
  • Curve
  • CurvePath
  • Interpolations
  • Path
  • Shape
  • ShapePath
• Extras / Curves
  • ArcCurve
  • CatmullRomCurve3
  • CubicBezierCurve
  • CubicBezierCurve3
  • EllipseCurve
  • LineCurve
  • LineCurve3
  • QuadraticBezierCurve
  • QuadraticBezierCurve3
  • SplineCurve
• Math
  • Box2
  • Box3
  • Color
  • Cylindrical
  • Euler
  • Frustum
  • Interpolant
  • Line3
  • MathUtils
  • Matrix3
  • Matrix4
  • Plane
  • Quaternion
  • Ray
  • Sphere
  • Spherical
  • SphericalHarmonics3
  • Triangle
  • Vector2
  • Vector3
  • Vector4
• Math / Interpolants
  • CubicInterpolant
  • DiscreteInterpolant
  • LinearInterpolant
  • QuaternionLinearInterpolant