Update of Ontology and BingAPI because classes were not public. Furthermore I created a new Logic project.

I updated Ontology & BingAPI because classes were not visibile after
adding the dll reference to Logic project due to the fact the classes
must be 'public class xxx' and NOT 'class xxx'. This is also relevant
for the database project because the dll file will be imported from the
Logic.
@AZAM: Please add your developed code at class/file Logic.cs, function
getResults at line 22.