--Move assert_init macro to libwr/wrs-msg.h
--Add printout to assert_init macro to know which function fails.
--Remove assert_init macro duplication from rsw_hal/hal_main.c
--Remove #include <libwr/shw_io.h> from libwr/shw_io.h (no need to include file
from itself)
Signed-off-by: Adam Wujek <adam.wujek@cern.ch>