DMS-25 introducing ICommand

...over/source/java/ch/systemsx/cisd/datamover/ICommand.java

datamover/source/java/ch/systemsx/cisd/datamover/Main.java

...er/source/java/ch/systemsx/cisd/datamover/Parameters.java

...source/java/ch/systemsx/cisd/datamover/StatusCommand.java

...emsx/cisd/datamover/filesystem/store/FileStoreRemote.java

...d/datamover/filesystem/store/RemoteFreeSpaceProvider.java

...ch/systemsx/cisd/datamover/utils/DataCompletedFilter.java