mcutout: implements doCutouts loop with Cutout::doFile and CutArgs JSON parsing

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

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

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

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

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

java-libs/lib/vlkb-volib-0.9.1-SNAPSHOT.jar