replaces DataLink -> MCutResult in doMCutout

...ccess/servlet/src/main/java/common/output/MCutResult.java

data-access/servlet/src/main/java/cutout/Datasets.java

data-access/servlet/src/main/java/cutout/DatasetsImpl.java

...-access/servlet/src/main/java/cutout/json/JdlMCutout.java

...access/servlet/src/main/java/cutout/json/JsonDecoder.java

data-access/servlet/src/main/java/webapi/ServletMCutout.java

data-access/servlet/src/main/java/webapi/UWSMCutoutWork.java

...-access/servlet/src/main/java/webapi/output/DataLink.java