Fix newer eigen asserts for ROS1 viz

/home/user/open_vins/catkin_ws/src/open_vins/ov_msckf/src/ros/ROS1Visualizer.cpp:709:129:   required from here
/usr/include/eigen3/Eigen/src/Core/Dot.h:74:3: error: static assertion failed: YOU_TRIED_CALLING_A_VECTOR_METHOD_ON_A_MATRIX
   74 |   EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived)
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/eigen3/Eigen/src/Core/Dot.h:75:3: error: static assertion failed: YOU_TRIED_CALLING_A_VECTOR_METHOD_ON_A_MATRIX
   75 |   EIGEN_STATIC_ASSERT_VECTOR_ONLY(OtherDerived)

See #236 and #226 and #121

rpng / open_vins

Fix newer eigen asserts for ROS1 viz #237