Migrate the rviz_plugin_tutorials pkg from rviz1 to rviz2

[clobot-git]

We migrate the rviz_plugin_tutorials package from rviz1 to rviz2(foxy).

But, there's some issue for using the rviz_plugin_tutorials in ROS2.

• In the , data type conversion errors(ex. Vector3 -> VectorBase<3, Real>) are occurred. So, we modified the error by changing the data type directly on that function of the OgreVector.h
• And some function that existed in ROS1 doesn't exist in ROS2. So, we comment out that function.

We want to use the rviz_plugin_tutorials in the ROS2(foxy). Please check out these issue.

Thank you.

[clalancette]

We ended up doing this in #75 instead. We appreciate the contribution; if there is anything we missed in #75, please feel free to open up a follow-up PR there.