Allow CLI options to be passed in a more traditional format
Now using minimist to parse command line options to pass to the generator.
Examples:
```shell
$ chance name --middle --prefix --gender="female"
Mrs. Madge Hilda Conner

$ chance state --full
North Dakota
```
Merge pull request #123 from oliversalzburg/feature/cli-options

Allow CLI options to be passed in a more traditional format