- explicitly set TOOLCHAIN on all NuttX targets

Co-Authored-By: CUAVcaijie <caijie@cuav.net>

You can now add `DYNAMIC` as an option to `px4_add_module`, which will
cause that module to no longer be compiled into the px4 executable, but
instead produce a separate shared library file, which can be loaded and
executed with the new `dyn` command:

    pxh> dyn ./hello.px4mod start

This will load the shared object file `hello.px4mod` if it wasn't
already loaded, and execute its main function with the given arguments.

Due to limited flash space

due to limited flash space.

Also some general minor sanitizer improvements.

 - fixes #10599

module list is now the same as posix_ocpoc_ubuntu.cmake

- only a few configs done yet

it got moved to drivers/telemetry/hott

This reverts commit 370fddc1.

Because the topic_listener got smaller.

 - add to AddressSanitizer and UndefinedBehaviorSanitizer to CMAKE_BUILD_TYPE options
 - handle environment variable helpers outside of CMake
 - add -O1 optimization
 - cleanup whitespace

 - relative to the PX4 source directory root

To reduce flash usage, until we can disable the FW & VTOL modules.

- Environment variables for building with asan
- Docker argument for leak sanitizer
- Regex for tests to fail on sanitizer error

Signed-off-by: Lukas Woodtli <woodtli.lukas@gmail.com>

This allows a simple-to-use bootloader update mechanism to switch from
fmu-v2 to fmu-v3 target that has more flash.

Added an imu heater driver, formatted whitespace, standardized comments, and added doxy documentation.

Not needed anymore, use PX4_ESTIMATOR.

 - this allows interacting with the submodules check

Not needed anymore