Minor changes to math module

-Fixed missing Set method: "X::Set(const X&)"
-Removed operator String


Former-commit-id: 690f161704ed85fc57a62b812af7933e390572b5

include/Nazara/Math/Vector3.inl

@@ -232,6 +232,14 @@ NzVector3<T>& NzVector3<T>::Set(const NzVector2<T>& vec, T Z)
 	return *this;
 }
 
+template<typename T>
+NzVector3<T>& NzVector3<T>::Set(const NzVector3& vec)
+{
+	std::memcpy(this, &vec, sizeof(NzVector3));
+
+	return *this;
+}
+
 template<typename T>
 template<typename U>
 NzVector3<T>& NzVector3<T>::Set(const NzVector3<U>& vec)
@@ -263,12 +271,6 @@ NzString NzVector3<T>::ToString() const
 	return ss << "Vector3(" << x << ", " << y << ", " << z <<')';
 }
 
-template<typename T>
-NzVector3<T>::operator NzString() const
-{
-	return ToString();
-}
-
 template<typename T>
 NzVector3<T>::operator T*()
 {