LMS-2736 - JSON-ize the Screening API - IScreeningApiServer part

.../java/ch/systemsx/cisd/common/collections/Modifiable.java

...eneric/server/authorization/DefaultReturnValueFilter.java

...penbis/public/resources/applications/jsonize/jsonize.html

.../openbis/public/resources/applications/jsonize/openbis.js

screening/.classpath

screening/dss-tmp/.gitignore

screening/etc/service.properties

screening/log-registrations/.gitignore

...penbis/dss/generic/server/DssScreeningApiJsonServlet.java

...sd/openbis/dss/generic/server/DssScreeningApiServlet.java

...is/dss/generic/server/DssScreeningApplicationContext.java

.../openbis/dss/screening/server/DssServiceRpcScreening.java

.../dss/screening/shared/api/v1/IDssServiceRpcScreening.java

...lugin/screening/server/ScreeningApiServiceJsonServer.java

...cisd/openbis/plugin/screening/server/ScreeningServer.java

...s/plugin/screening/shared/api/v1/IScreeningApiServer.java

...plugin/screening/shared/api/v1/dto/DatasetIdentifier.java

.../plugin/screening/shared/api/v1/dto/DatasetReference.java

...gin/screening/shared/api/v1/dto/ExperimentIdentifier.java

.../screening/shared/api/v1/dto/ExperimentImageMetadata.java