Add mass fraction multi-phase table to sesame2spiner#600

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adamdempsey90 wants to merge 3 commits intomainfrom

dempsey/mass_frac

Commits on Jan 12, 2026

Add mass fraction table to sesame2spiner
adamdempsey90
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Commits on Jan 15, 2026

Add table existence check to eospac_wrapper. Return a bool from eosMassFraction and fill the string rather than the other way around
adamdempsey90
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Move getting of phase names and number of phases to eospac_wrapper and use the generic functions to do it
adamdempsey90
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