These functions used vprintf which is not available on all platforms.
They also do not enable line and file debug output.
Changed to macros that preserve the output format. Uses new macro that
can be used to implement per object, runtime selectable logging
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
The existing orb_advert_t use thoughout the code sometimes tries
to treat it as a file descriptor and there are checks for < 0
and ::close calls on orb_advert_t types which is an invalid use
of an object pointer, which is what orb_advert_t really is.
Initially I had changed the -1 initializations to 0 but it was
suggested that this should be nullptr. That was a good recommendation
but the definition of orb_advert_t had to change to void * because
you cannot initialize a uintptr_t as nullptr.
Signed-off-by: Mark Charlebois <charlebm@gmail.com>