Added support for MacOS
Added "quiescent mode" Timeout and count messages do not print in this mode.
Added "--digits" to control the horizontal largess of hexadecimal displays.
Added program title and version tagline, printed when the software is started.
Added code to allow "-q" shorthand for "quiescent mode".
Changes were made to add "#ifdef" statements so that only code appropriate to MacOS would be compiled if a "#define MACOS" is defined early within the source code.
Cleaned up comments in the source for my new source code.