Adds first go at COARE v3.6 algorithm#33

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andrew-s28 wants to merge 3 commits intopyCOARE:mainfrom

andrew-s28:coare_36-dev

Commits on Jan 29, 2025

initial commit for an implementation of the COARE v3.6 algorithm
andrew-s28
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Commits on Mar 20, 2025

simplify albedo lookup so as to not require longitude or time as input - instead albedo is calculated assuming equinox declination and noon time
andrew-s28
committed

Commits on Mar 21, 2025

add albedo function update to changelog
andrew-s28
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