Instrument client/service for end-to-end request/response tracking

[christophebedard]

This adds instrumentation to clients and services using tracetools for end-to-end tracking of requests/responses. For more information, see ros2/ros2_tracing#145.

Requires ros2/ros2_tracing#145

[christophebedard]

Pulls: ros2/ros2_tracing#145, #521, ros2/rmw_fastrtps#787, ros2/rmw_connextdds#163
Gist: https://gist.githubusercontent.com/christophebedard/6de7664f9c4b0103faca7eff9ae7a757/raw/f3665ac1140f461336f4c2444f38bacfcc8f44d8/ros2.repos
BUILD args: --packages-above-and-dependencies test_tracetools tracetools tracetools_trace rmw_cyclonedds_cpp rmw_fastrtps_cpp rmw_fastrtps_dynamic_cpp rmw_fastrtps_shared_cpp rmw_connextdds_common
TEST args: --packages-above test_tracetools tracetools tracetools_trace rmw_cyclonedds_cpp rmw_fastrtps_cpp rmw_fastrtps_dynamic_cpp rmw_fastrtps_shared_cpp rmw_connextdds_common
ROS Distro: rolling
Job: ci_launcher
ci_launcher ran: https://ci.ros2.org/job/ci_launcher/14947

• Linux
• Linux-aarch64
• Linux-rhel
• Windows

[christophebedard]

• Linux
• Linux-aarch64
• Linux-rhel
• Windows

[fujitatomoya]

lgtm, but i would like to ask review on this from @eboasson

@eboasson could you please take a look?

[christophebedard]

Oh, I missed the comment with your approval. I'll merge it for now since it's approved and since it's pretty similar to the existing instrumentation. If there's anything, we can do a follow-up PR.

[fujitatomoya]

@christophebedard yeah okay, we can always follow up if anything comes up! thanks!