reasoning behind nts_lib

[James Browning]

I had a reason for structuring nts_lib the way I did. It was mostly
because I have the wrong ideas about what I am doing. Most of the
variables that could reasonably be needed and some that are are in the
structs. I was trying (incorrectly) to make the code thread-safe.

Anyway, not that I seem to have the base version working in my simple
tests. I would like to add slightly more realistic tests and refactor
it into something a little less clunky.