Task #9607: available_capacity for cep4storage resource is updated regurarly by datamanagement service, so no need anymore to call ssdb

Task #8887: added ScheduleChecker, which automatically moved scheduled pipelines just ahead of now, and which extends the endtime of running pipelines to now

Task #8887: resourceassigner publishes scheduled/conflict events on bus. rotspservice reacts to these events via rabuslistener instead of radbbuslistener

Task #8887: moved strict resource assignement code into seperate module/class. Let the service use that class

Task #8887: implemented rudimentary version of getAvailableResources method. Works against SSDBService on mcu005

Task #8887: added --notification_busname and --notification_subject options for SpecifiedTaskListener

Task #8887: added config. added optionparser for commandline args. resourceassigner can now actually start