Move the original documentation in the arduino_101 board to a common
section in the Bluetooth documentation and document the use of `btmon`
in general.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Added some more content to the section about how to simulate
with BabbleSim and a couple of extra links.
Signed-off-by: Alberto Escolar Piedras <alpi@oticon.com>
Overhaul the Bluetooth documentation to split it into manageable units
and include additional information, such as architecture and tooling.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>