v2 added rotate_z() and minor update for consistency.
Added:
rotate_z(a, angle)
Rotate a vector on a fixed `z`.
Parameters:
a (Vector3 type from RicardoSantos/CommonTypesMath/1): `Vector3` Source vector.
angle (float): `float` Angle in radians.
Returns: `Vector3` Generated new vector.
___
**Usage:**
```
a = .rotate_z(.from(3), math.toradians(90.0))
```