WootheeResult lifetimes needlessly tied to Parser's

[pjenvey]

Parser's an empty struct without any state. Lifetime expansion causes WootheeResult's 'a lifetime to correspond to Parser's. This doesn't really make any sense and inconveniences the API.

I'd think the strings contained in WootheeResult should likely all be 'static or at the very least tied to the agent &str (if slices are pulled from it).

Here's an example and further discussion:

https://stackoverflow.com/questions/42564300/return-struct-with-lifetime-for-ffi/42564847

[pjenvey]

See my comment in #6 (comment)

[pjenvey]

closed w/ #6, #8