OZG-8070 Move processing to formsolutions-semantik

pom.xml

.../ozgcloud/eingang/formsolutions/FormSolutionsEingang.java

...oud/eingang/formsolutions/FormSolutionsRequestMapper.java

...a/de/ozgcloud/eingang/formsolutions/SendFormEndpoint.java

...ingang/formsolutions/FormSolutionsEingangTestFactory.java

...ngang/formsolutions/FormSolutionsRequestMapperITCase.java

...eingang/formsolutions/FormSolutionsRequestMapperTest.java

...e/ozgcloud/eingang/formsolutions/FormsolutionsITCase.java

src/test/resources/SimpleJsonWithAttachments.json