feat(isotopic-distribution): add sparse option to getGaussian

[lpatiny]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (2979fea) to head (c41a983).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #312   +/-   ##
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  Coverage   100.00%   100.00%           
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  Files            1         1           
  Lines            1         1           
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  Hits             1         1           

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