Added employee class, there aren't any joins for the dept Ids yet.

There was a discrepency in department.java where name size was 45 and
then length was 50, changed name size to 50.

Started uncommenting code in EmployeeDaoTest.java
Created employee entity, IEmployeeDao interface and EmployeeDao class.
Have been working on them to make the employeeDaoTest tests pass. Have 2
errors and 1 failure left!