all the ones with mc_pos_control need the library, we should use cmake dependencies!

Latest: https://github.com/PX4/uavcan_board_ident/commit/2e5f9d6768b1dbffc006dc2ceeb2bfe120f22163

Changes from uavcan_board_ident (https://github.com/PX4/uavcan_board_ident/commit/f8851c841ecdaacc41a5219cc83e4a178a09bc08) in current PX4/master (9fc1755c)
https://github.com/PX4/uavcan_board_ident/compare/f8851c841ecdaacc41a5219cc83e4a178a09bc08...2e5f9d6768b1dbffc006dc2ceeb2bfe120f22163

2e5f9d6 2017-09-05 Daniel Agar - Update LICENSE

* Adding pwm_out_sim
* pwm_out_sim driver will be by default part of Aero FC PX4 Nuttx drivers
* tap_esc is off when SYS_HITL 1

Signed-off-by: Roman <bapstroman@gmail.com>

Signed-off-by: Roman <bapstroman@gmail.com>

LTEST_MODE is defined in landing_target_estimator and required by
local_position_estimator.

Required by Navigator.

We are running out of flash memory in px4fmu-v2 so removing all the
distance sensors from binary and adding then individually.
Right now only LeddarOne is not being buid.

Accidentally dropped in bad813e9

This is now required in the startup scripts

superseded by src/templates/module

Just to make sure it's built with CI

* Cygwin: repaired NuttX build after 1f63d858
all the NuttX specific WINTOOL define handling was skiped in cmake Make.defs generation
The Nuttx build is makfile based and needs its cygwin treatment

Additionally the ${PX4_SOURCE_DIR}/src/include which was added through cmake needs path conversion

The two root causes for the special handling are:
- ARM GCC for Windows doesn't support cygwin paths passed as an argument
  so they need to be either relative or converted via cypath tool
- Symbolic links are totally different under Windows and because NuttX uses them extensively
  it has special handling scripts that need to be fed with the correct defines

* Cygwin: NuttX include paths all converted in Make.defs.in

differentiate between WINTOOL define (MSYS & cygwin) and cygwin using uname command:
- MSYS needs symbolic link handling for ARM GCC but no path conversion
- Cygwin needs both