Construct classification template flow
Needs a new process component that doesn't fire until it receives a trigger (any Object, which is not used just triggers binary run). Example use is classifier training component that should not run until the features are extracted. A component will fire a feature extractor binary which produces features (files on disk in working dir) then outputs its list of NemaData Objects (which don't have extracted data in them as we don't know how to read it yet) when done. This triggers classifier training binary component which assume features have been extracted to working/output dir and uses them to train models.
Needs support for skippable binary executions. Example use is a set of binaries that extracts features when training and therefore doesn't need feature extraction component. If feat extract component is set to skip it can output straight away and let classification component continue.
Not elegant but will work for MIREX and can be resolved when we can read feature files.