Add select command

[ziyang27]

• similar function to find, but only shows one person card and uses index instead of searching by name
• skeleton code to eventually produce the person profile
• no test was written for this, test coverage expected to drop

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 73.95%. Comparing base (978cea6) to head (ac4f189). Report is 3 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #50 +/- ## ============================================ + Coverage 73.21% 73.95% +0.73% - Complexity 419 437 +18 ============================================ Files 74 77 +3 Lines 1374 1413 +39 Branches 129 133 +4 ============================================ + Hits 1006 1045 +39 Misses 337 337 Partials 31 31 ```

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[ziyang27]

I just included the tests 😄