End-to-end exercise of the micro-ROS stack on NuttX: calls
microros_transport_init() to register the configured backend,
brings up rclc_support / node / publisher, publishes 30
std_msgs/Int32 messages on /nuttx_pub at 1 Hz, then tears the
stack down cleanly.
The example's Make.defs adds $(APPDIR)/system/microros/transport
to its own CFLAGS rather than the system/microros Make.defs, so
the transport-glue header path is not pushed into the global
search path for unrelated apps.
Serves as the smoke test for the transport layer and as a template
for downstream publisher apps.
Signed-off-by: Arjav Patel <arjav1528@gmail.com>
