Implement extra credit functionality

[codecov[bot]]

Codecov Report

Base: 97.98% // Head: 97.98% // Increases project coverage by +0.00% :tada:

Coverage data is based on head (a9a6144) compared to base (b0f9902). Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #55 +/- ## ======================================= Coverage 97.98% 97.98% ======================================= Files 18 18 Lines 943 944 +1 Branches 158 158 ======================================= + Hits 924 925 +1 Misses 13 13 Partials 6 6 ``` | [Impacted Files](https://codecov.io/gh/nihilistkitten/aga/pull/55?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Riley+Shahar) | Coverage Δ | | |---|---|---| | [src/aga/core.py](https://codecov.io/gh/nihilistkitten/aga/pull/55/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Riley+Shahar#diff-c3JjL2FnYS9jb3JlLnB5) | `97.76% <100.00%> (ø)` | | | [src/aga/score.py](https://codecov.io/gh/nihilistkitten/aga/pull/55/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Riley+Shahar#diff-c3JjL2FnYS9zY29yZS5weQ==) | `100.00% <100.00%> (ø)` | | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Riley+Shahar). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Riley+Shahar)

:umbrella: View full report at Codecov.
:loudspeaker: Do you have feedback about the report comment? Let us know in this issue.