Use App.Medicine.fleshSize() instead of in-place computations

js/medicine/utility.js

src/data/backwardsCompatibility/datatypeCleanup.js

src/endWeek/player/prDiet.js

src/endWeek/player/prHormones.js

src/endWeek/player/prLongTermEffects.js

src/endWeek/player/prLongTermPhysicalEffects.js

src/endWeek/player/prPregnancy.js

src/endWeek/reports/clinicReport.js

src/endWeek/saDiet.js

src/endWeek/saDrugs.js

src/endWeek/saHormonesEffects.js

src/endWeek/saLongTermEffects.js

src/endWeek/saLongTermMentalEffects.js

src/endWeek/saLongTermPhysicalEffects.js

src/endWeek/saPregnancy.js

src/events/RE/reLegendaryCow.js

src/facilities/surgery/surgeryPassageUpper.js

src/interaction/siPhysicalRegimen.js

src/js/pregJS.js

src/js/storyJS.js