Added exists? method, changed get method to add condition type according to the type of resource. Resource is now a Class and no a Module.
Added exists? method, changed get method to add condition type according to the type of resource. Resource is now a Class and no a Module.

net7/ActiveRDF,mauriciobomfim/ActiveRDF,net7/ActiveRDF,ActiveRDF/ActiveRDF,net7/ActiveRDF,ActiveRDF/ActiveRDF,mauriciobomfim/ActiveRDF,ActiveRDF/ActiveRDF,mauriciobomfim/ActiveRDF,net7/ActiveRDF