Initial release of kmatch

@micahhausler @wilduck this is the initial release of kmatch. We should be good to go on its RTD stuff. Let me know what you think about the library. Some of the diffs you see are related to me originally using the wrong template when I made the master repo
One thought thats kind of a preference thing: If you put three angle brackets `>>>` before your print statements, it'll clarify if your example code is meant to be demonstrated as a REPL example or a code example
``` python
>>> print KMatch(['k', '=~', '.*@.*']).match({'k': 'person@mail.com'})
True
```