Make this a github page and add ros-docker-macos interdevice tutorial

[sapertuz]

Create macos-docker-cyclonedds.md. It covers the full setup end-to-end: why it works, the Docker image and run script, persistent routing on the remote device, CycloneDDS config, and a testing section. No Jetson-specific references.

Put it somewhere and then organize and merge this repo as a page