Added integration tests for file upload, all pass

...ain/java/at/tuwien/api/zenodo/deposit/FileRequestDto.java

...ce/rest-service/src/test/java/at/tuwien/BaseUnitTest.java

...st/java/at/tuwien/service/FileServiceIntegrationTest.java

.../src/test/java/at/tuwien/service/FileServiceUnitTest.java

...ava/at/tuwien/service/MetadataServiceIntegrationTest.java

.../test/java/at/tuwien/service/MetadataServiceUnitTest.java

...ce/rest-service/src/test/resources/application.properties

...-service/rest-service/src/test/resources/csv/testdata.csv

...ervice/rest-service/src/test/resources/csv/weatherAUS.csv

...services/src/main/java/at/tuwien/config/ZenodoConfig.java

...java/at/tuwien/exception/ZenodoFileTooLargeException.java

...services/src/main/java/at/tuwien/mapper/ZenodoMapper.java

...services/src/main/java/at/tuwien/service/FileService.java

...es/src/main/java/at/tuwien/service/ZenodoFileService.java

...rc/main/java/at/tuwien/service/ZenodoMetadataService.java

.../main/java/at/tuwien/utils/UploadTemplateInterceptor.java