Documentation incorrect for Quaternion32

[calvertdw]

From Quarternion32.java

 * This version of quaternion uses **double** precision fields to save the value of each component. It
 * is meant for garbage free usage and for situations where heap memory is limited. When memory is
 * not a constraint, the use of {@link **Vector2D32**} is preferable.

[SylvainBertrand]

I fixed this typo in Euclid. I probably won't change it here.