feat(2018 day-14): eliminate the need to define elves when creating recipes

moves elves to be a property of recipes so a list of elves doesn't have to be manually defined

Breaks calculateXAfterY(x, y, elves), use calculateXAfterY(x, y) instead
Breaks findPattern('XXX', recipes, elves), use findPattern('XXX', recipes) instead
Breakds loopRecipesForElves(elves, recipes, X), use  loopRecipesForElves(recipes, 15) instead

Author: developher-net

2018/day-14/solution.js

@@ -6,12 +6,9 @@ const {
 
 const input = 540561
 
-let elves = [3, 7]
-let recipes = new Recipes(elves)
-elves[0] = recipes.tail
-elves[1] = recipes.head
+let recipes = new Recipes([3, 7])
 
-const answer = calculateXAfterY(10, input, recipes, elves)
+const answer = calculateXAfterY(10, input, recipes)
 
 console.log(`-- Part 1 --`)
 console.log(`Answer: ${answer}`)