Realreq

Fixes/Improvements
- Resolves a bug with alias-file specification that doesn't strip newlines

Fixes/Improvements
- Resolve a [bug](https://github.com/Calder-Ty/realreq/issues/11) where realreq would crash on
unrecognized version format.

Fixes/Improvements
- Significant performance improvements for larger codebases, when doing a deep search (14x improvements in some cases).

Added

- New CLI flag `--alias` which can be used to specify aliases for packages with import names that
don't match their install names.

Added

- Ability to switch between shallow and deep dependency searches (default is shallow).
- Initial Beta Release