Port package to ROS 2

[vmayoral]

No description provided.

[clalancette]

A few minor things; once those are addressed, I'm happy to merge this.

[clalancette]

This block is redundant (and actually somewhat in opposition to):

if(NOT CMAKE_CXX_STANDARD)
  set(CMAKE_CXX_STANDARD 14)
endif()

below, so just remove it.

[clalancette]

We can just make this:

find_package(Eigen3 REQUIRED)

And get rid of all of the backwards-compatibility stuff; this will never go onto older Ubuntu versions.

[clalancette]

Missing:

  <export>
    <build_type>ament_cmake</build_type>
  </export>

[clalancette]

@vmayoral I did a few more fixups in a611d8a . In particular:

• I removed the rest of the Eigen compat stuff, since now we have Eigen3 REQUIRED, we won't ever run into those situations
• I removed the stuff bumping the version and the CHANGELOG. While appreciated, this will be done automagically by catkin_generate_changelog/catkin_prepare_release when we prepare the next release of this package. Also, we'll most likely bump the major or minor number for this package when releasing into ROS 2, to ensure there can never be version conflicts between ROS 1 and ROS 2.

With that, I'm happy with this, and I'm going to merge. Thanks for the contribution!

[vmayoral]

Thanks a lot for the fixes @clalancette! Happy to contribute.