[Geometry] Fix alignment issues

src/angle-axis.cpp

@@ -14,9 +14,12 @@
  * with eigenpy.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "eigenpy/memory.hpp"
 #include "eigenpy/geometry.hpp"
 #include "eigenpy/angle-axis.hpp"
 
+EIGENPY_DEFINE_STRUCT_ALLOCATOR_SPECIALIZATION(Eigen::AngleAxisd)
+
 namespace eigenpy
 {
   void exposeAngleAxis()

src/quaternion.cpp

@@ -14,9 +14,12 @@
  * with eigenpy.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "eigenpy/memory.hpp"
 #include "eigenpy/geometry.hpp"
 #include "eigenpy/quaternion.hpp"
 
+EIGENPY_DEFINE_STRUCT_ALLOCATOR_SPECIALIZATION(Eigen::Quaterniond)
+
 namespace eigenpy
 {
   void exposeQuaternion()