Added `named_arrays.despike()` function, a wrapper around `astroscrappy.detect_cosmics()`.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 95.71429% with 3 lines in your changes missing coverage. Please review.

Project coverage is 95.16%. Comparing base (d02d1a6) to head (7f025e9). Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...rrays/_functions/function_named_array_functions.py	78.57%	3 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #86 +/- ## ======================================= Coverage 95.16% 95.16% ======================================= Files 76 77 +1 Lines 11030 11096 +66 ======================================= + Hits 10497 10560 +63 - Misses 533 536 +3 ``` | [Flag](https://app.codecov.io/gh/sun-data/named-arrays/pull/86/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=sun-data) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/sun-data/named-arrays/pull/86/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=sun-data) | `95.16% <95.71%> (+<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=sun-data#carryforward-flags-in-the-pull-request-comment) to find out more.

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