transform = (out, vector, matrix) => {
  const x = vector[0]
  const y = vector[1]
  out[0] = matrix[0] * x + matrix[4] * y + matrix[12]
  out[1] = matrix[1] * x + matrix[5] * y + matrix[13]
  return out
}
Transforms the given vector using the given matrix.

@param {vec2} out - receiving vector
@param {vec2} vector - vector to transform
@param {mat4} matrix - matrix to transform with
@returns {vec2} out
@alias module:modeling/maths/vec2.transform