first commit
add initialize methods and getter methods
add setter methods
replace getter & setter methods with attr_accessor
added getter method for recipes & add_recipe method that allows us to add an object in the recipes array
added testcode.rb code to run cookbook.rb from testcode.rb
added puts statement to add_recipe
added recipe_titles method which lists titles from recipes array and recipe_ingredients method which lists the recipe titles and ingredients
added print_recipe method to Recipe class which prints out the information for a given recipe
added quesadilla recipe to testcode.rb
added print_cookbook method to Cookbook class which prints each recipe in the cookbook
changed print_cookbook and print_recipe methods to print a numbered list of the steps for the given recipe(s)
changed puts title to @title in print_recipe method