TFE 3D - Show vector arrows

[ShrimpCryptid]

Use Case

Support vector arrow drawing in 3D viewport to replicate existing TFE 2D viewport behavior.

Solution

• Allow clients to provide an array of vectors with a 3D origin and direction/magnitude, as well as a color.
• Draw vector arrows from specified origin to specified direction, in the provided colors.

Alternatives

• Should vector arrows be 3D, made up of cylinders + cones like AGAVE?
  • Or should they be lines only? lines with thickness?