Progress: print function changes.

Progress: print function changes.

After getting byte_dump switched to file descriptors and testing it, I discovered that the unbuffered write has massive performance issues over the buffer writer that is a file stream.
Do some back pedalling and then go down a different route.
Add functions for managing file streams.
Make it possible to have both the descriptor and the stream to give more control at the higher level on when to decide which to use.

There is still much more cleanup, back-pedalling, as well as redesigning the code to (now) use fprintf() over printf() and similar.