Use Cases

The following use cases have been added for viewing and editing: (1)
Customer view notice file for product, (2) Product manager adds a
product to the database, and (3) Product manager compares two different
packages of the same software. These use cases can be found in the
documentation folder inside the folder called Use Cases
Merge branch 'master' of https://github.com/zwmcfarland/CSCI-4900