Function divide

divide(a, b, dst?): Vec4
Divides a vector by another vector (component-wise); assumes a and b have the same length.
Parameters
- a: Vec4
  Operand vector.
- b: Vec4
  Operand vector.
- Optional dst: Vec4
  vector to hold result. If not passed in a new one is created.
Returns Vec4
The vector of quotients of entries of a and b.