XNAT-4521 Moved MVC and REST controller to later in the process to allow

src/main/java/org/nrg/xapi/configuration/RestApiConfig.java

src/main/java/org/nrg/xapi/rest/dicom/AnonymizeApi.java

...in/java/org/nrg/xnat/configuration/ApplicationConfig.java

src/main/java/org/nrg/xnat/configuration/WebConfig.java

...in/java/org/nrg/xnat/initialization/ControllerConfig.java

...va/org/nrg/xnat/initialization/XnatWebAppInitializer.java

...rg/xnat/spawner/controllers/ManageElementsController.java