Print data to stdout (the console)
[sim] = ld_printf(sim, events, in, str, insize)
in *+(insize) - vectorial input signal
str is a string that is printed followed by the signal vector in
of size insize
Hint: Apply colored printf's by using the predefined terminal color codes:
str = ORTD.termcode.red + "some colored text..." + ORTD.termcode.reset
instead of red there currently is: green, yellow, blue.