Tells the doxygen preprocessor to ignore __attribute__() strings.
Added support for M25P16 flash chip
posix: bump up telemetry rx/tx buffer sizes to work around deadlock

pios_tcp.c performs all transmits synchronously in the tx_start
handler.  This can lead to deadlocks on the telemetry connection->lock.

Rx thread takes connection lock, calls tx path in response to a get
request.  Blocks on full tx queue.  Tx thread blocks on connection
lock.  Deadlock.

This change does not actually fix the issue.  It simply works around
this deadlock by making the tx buffers larger.
Merge pull request #645 from peabody124/sim_fix

posix: bump up telemetry rx/tx buffer sizes to work around deadlock
Merge pull request #640 from hosentraeger/F4-M25P16-Flash

Added support for M25P16 flash chip
Merge pull request #627 from kubark42/doxygen-preprocessor

Configure the doxygen preprocessor to ignore __attribute__() strings.
Renamed SetShowCompass to SetShowCompassRose and added function
documentation.
Compass rose is no longer moveable.
Renamed compass to compassRose.
Fixed typo in compass.svg file name.
WIP: Added wind compass. Currently does not function except to show the
compass rose.
Added wind_compass.svg. The SVG artwork is a proof of concept modified from
the existing compass.svg file.
Add wind velocity UAVO.
Moved SVG elements to separate layers.
Updated wind_compass_svg artwork.
Completed functionality for windspeed compass.