The purpose of this program is to read in a description of
nested containers and to build a Java object. The program
then checks whether each container satisfies its capacity
restriction.

Example:
Consider the following container description

( //begin container 1
apple 1 //item
  ( //begin container 2
  pencil 1 //item
    ( //begin container 3
    apple 1 //item
    1) //capacity
  orange 1
  1) //capacity
orange 1
kiwi 1
5) //capacity

=================
Container 2 is over capacity since it contains three items with a total
weight of 3, but the capacity is one.
Container 1 is also over capacity. It contains 6 items with
a total weight of 6, but the capacity is 5.
Container 3 is within capacity.

For each container which is over capacity, the program should
print a message of the form:

total weight 2 but limit is = 1 OVER CAPACITY