added toggle_oven method
added give_me_seven method
added adopt method which takes 'animal' as a parameter and adds it to the @animals array
fixed 'initialize' method
added getter and setter 'secret' method
passed Arrays 1
fixed Box class' getter and setter methods and added attr_ methods for Person class
added iteration over array in self.iterate_and_print method
corrected self.select_higher method using .select method and iteration over the array
used map method to iterate over people array
added empty hash to self.create_empty_hash method
added veggie color hash
added self.uppercase_third_element method