OZG-30 - connect to EingangMapper, refactor packaging

.gitignore

.../de/itvsh/ozg/adapter/intelliform/FileUploadResponse.java

...e/itvsh/ozg/adapter/intelliform/SystemStatController.java

...itvsh/ozg/adapter/intelliform/formdata/Antragsteller.java

...ozg/adapter/intelliform/formdata/AntragstellerMapper.java

...a/de/itvsh/ozg/adapter/intelliform/formdata/FormData.java

.../ozg/adapter/intelliform/formdata/FormDataController.java

...tvsh/ozg/adapter/intelliform/formdata/FormDataMapper.java

...de/itvsh/ozg/adapter/intelliform/formdata/FormHeader.java

...sh/ozg/adapter/intelliform/formdata/FormHeaderMapper.java

...ozg/adapter/intelliform/formdata/XmlToJavaMapsMapper.java

...h/ozg/adapter/intelliform/formdata/ZustaendigeStelle.java

.../itvsh/ozg/adapter/intelliform/vorgang/EingangMapper.java

...itvsh/ozg/adapter/intelliform/vorgang/VorgangService.java

...vsh/ozg/adapter/intelliform/FileUploadControllerTest.java

.../adapter/intelliform/converter/IntelliFormMapperTest.java