Using underscore prefixes is not allowed for include guards as all
defines starting with underscore are reserved. At the same time made
file ends and spacing and style of include guards consistent in all
headers.
The new style of include guards also includes the directory of the
include file relative to `src` directory to prevent potential future
issues where we might end up with a name clash across directories.
Firmware BMP with ENABLE_DEBUG=1 will print WARN and INFO as before.
PC-Hosted BMPwill alway print to stderr. Warn is printed unconditional,
INFO, GDB, TARGET, DONGLE and WIRE will print if their appropriate bit in
cl_debuglevel is set via the -v verbose command line argument.
INFO will go to stdout with -t or -l.
Piotr Esden-Tempski
Rafael Silva
dragonmux
Uwe Bonnes