- .msg files are PascalCase
- topics are still either per msg or explicitly listed in TOPICS
- compatible structs are still generated (eg struct msg_s), but ROS2 style px4::msg::Msg is also available
This is more logical place for the "backend" implementation than
directly under platform.
This also allows making other implementations as "real" drivers, as well as proper configuration via Kconfigs
Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
- cmake NuttX build wrapper compile in place instead of copying source tree to build directory
- slightly faster skipping necessary copying (depending on system)
- allows debugging in place
- easier to work directly in NuttX following official documentation
- simplifies overall build which should make it easier to resolve any remaining NuttX dependency issues in the build system
- the downside is switching back and forth between different builds always require rebuilding NuttX, but I think this is worth the improved developer experience
- also no longer builds px4io and bootloader in every single build, for most users these rarely change and we're wasting a lot of build time
