dev(narugo): add laplacian score

[narugo1992]

• [ ] TODO: complete unittest for laplacian score

[codecov[bot]]

Codecov Report

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

Project coverage is 99.09%. Comparing base (a6c9097) to head (8be6e47).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #82 +/- ## ======================================= Coverage 99.08% 99.09% ======================================= Files 85 86 +1 Lines 2526 2536 +10 ======================================= + Hits 2503 2513 +10 Misses 23 23 ``` | [Flag](https://app.codecov.io/gh/deepghs/imgutils/pull/82/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=deepghs) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/deepghs/imgutils/pull/82/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=deepghs) | `99.09% <100.00%> (+<0.01%)` | :arrow_up: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=deepghs#carryforward-flags-in-the-pull-request-comment) to find out more.

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