Integrated Pipeline: added missing test data constructors for CalculationParserEvents and added them to tests

-trait-import on the suite level was causing name clashes between message and event matchers

Integrated Pipeline: adjusted worker counts in end-to-end tests to have more/equally many/less workers than tasks

Integrated Pipeline: renamed TreeParserProcessEvent to TreeParserEvent, moved matcher construction helpers to a separate object

Integrated Pipeline: metaInfo-dependencies of objects are now explicit, removed some explicit micro-classes

Integrated Pipeline: transformed ParsingTaskGenerator into a trait, changed TreeParser trait implementing classes

-removed the two mini-classes implementing Directory/Zip sources and replaced them with an anonymous class in Main

Integrated Pipeline: got rid of TreeParserFlow, replaced by TreeParser which integrates with Streams via MessageProcessor(Flow)

Integrated Pipeline: added TreeParser trait, will replace TreeParserflow with a MessageProcessor based implemention

Integrated Pipeline: added Variance annotations to MessageProcessor and changed expected exception class

Integrated Pipeline: got rid of some unused implicit config parameters, made implicit parser collections explicit

Integrated Pipeline: removed trait ParsingTaskGenerator (implementors become Iterators, counting functionality moved to TreeParserFlow)

Integrated Pipeline: moved task-generation features from ParsingTaskGenerator trait to companion object

-removed stream timeout setting from package object
-replaced name operations on parsers with fixed strings because parsers implicitly load
 all metainfo
-made meta-info in package object a lazy implicit

-archives are now unpacked when the first parsing task arrives

Integrated Pipeline: added end-to-end tests for parsing rawdata-archive content with multiple workers

Integrated Pipeline: added a short sleep to mock processing in CalculationParsingFlowSpec to stabilize task distribution