Deprecate CPP typesupport

[pablogs9]

Signed-off-by: Pablo Garrido pablogs9@gmail.com

[codecov-commenter]

Codecov Report

❗ No coverage uploaded for pull request base (galactic@51c7e2b). Click here to learn what that means.
The diff coverage is n/a.

❗ Current head aacbb1c differs from pull request most recent head 5135b0e. Consider uploading reports for the commit 5135b0e to get more accurate results

@@            Coverage Diff             @@
##             galactic     #47   +/-   ##
==========================================
  Coverage            ?   0.00%           
==========================================
  Files               ?       1           
  Lines               ?       9           
  Branches            ?       2           
==========================================
  Hits                ?       0           
  Misses              ?       9           
  Partials            ?       0           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 51c7e2b...5135b0e. Read the comment docs.

[Acuadros95]

This implies modifications on rmw_microxrcedds. Example: https://github.com/micro-ROS/rmw_microxrcedds/blob/galactic/rmw_microxrcedds_c/src/rmw_publisher.c#L26-L27

[k7g03z]

@pablogs9 Can you provide some background why the type support for CPP is being deprecated?

We are looking into Micro-ROS as a microcontroller solution together with rclcpp and found this MR. Can you tell us more?

[pablogs9]

Hello, @k7g03z micro-ROS targets pure C environments in order to be as portable as possible. That's why we do not need this CPP type support (in fact it was developed, but never used). Also we do not officially support RCLCPP because the portability issues.