Add particulate remineralization according to profile (e.g. Martin Curve).#19

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seamanticscience wants to merge 3 commits intomainfrom jml/more-bgc-functionality

+721-113

Commits on Oct 4, 2023

introduce particulate remineralization according to a prescribed profile (e.g. power law)
seamanticscience
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Commits on Oct 17, 2023

modify remineralization calculation to be a bit more efficient
seamanticscience
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Commits on Nov 14, 2023

few more updates
seamanticscience
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