Merge branch 'prototype' into 'pregmod-master'

devNotes/standaloneFunctions.md

devNotes/usefulJSFunctionDocumentation.txt

devTools/types/extensions.d.ts

js/extensions/number.extension.js

js/utils.js

src/Mods/SecExp/js/secExpBC.js

src/Mods/SpecialForce/SpecialForce.js

src/endWeek/saServeYourOtherSlaves.js

src/js/rulesAssistant.js

src/js/slaveCostJS.js

src/pregmod/eliteBreedingExam.js