Issue 43 Maven Build Does Not Run Tests Defined In Eclipse Plugin Projecect

Reason build wasn't running test was that Tycho will only run tests in projects with a packaging of "eclipse-test-plugin." So I moved the tests in the eclipse plugin to a new plugin. Made some changes to the model content provider and test. Added methods to ModelObject that get that value of a property as an Object. Added test for this change to the API.