Document code using doxygen style comment blocks
- Document public methods using doxygen style comment blocks on both linux and zephyr code
- Add Doxyfile
- Update README
- linux/CoapClient: remove multicast_messages because for now multicast messages are treated same as unicast messages by accepting the first response to the multicast request.
Signed-off-by: Francesco Pham francesco.pham@huawei.com
Edited by Francesco Pham