Tests are CC0/public domain because there's no reason for them not to
be. Examples are also CC0/public domain, but this may be a little bit
weird because they are largely straightforward ports of examples from
nats.c which carry the Apache license. However, I personally wrote
them against the zig bindings and I doubt anyone will end up in a
court of law due to their software containing uselessly trivial
example code.
After contemplating this for a little bit, there's no point in exposing
these separately from the plain variants. Even nats.c internally calls
its plain variants after calling `strlen` on the input. Zig benefits
from having nicer pointer types than C, so we get "string" handling
for free from the fact that the standard variants take slices anyway.
