Adding support for Edition Based Redefinition for PROMISES_NINJA

As part of another project, where I need to support the Edition Based Redefinition feature, I needed to add support inside the promise class for the dbms_scheduler job_class parameter. The job_class parameter can point to a service, and a service can be assigned a default edition to run in. This allows me to execute code inside a promise, and automatically support any edition that has been created in the database, as well as assigned to a service.