Hello SG++ developers,

this PR intends to add functionality to the UniversalMiner within the datamining pipeline such that a complete "out-of-the-box", JSON-config-only exectuable can be used.

All examples for the datamining pipeline should then be transitioned to only supply the JSON config and use the same UniversalMiner executable.

Questions:

• How can we unify hpo and non-hpo configs. Currently MinerFactory treats these two options very differently
• There are examples that do not create a learner at all but show off different features of the pipeline, e.g. dataMatrixDatabase.cpp or DataMatrixDatabaseFromConfigFile.cpp. What to do with these?
• Similar to hpo, how to treat this new parallel stuff and how to integrate it with UniversalMiner
• Renaming of many .json files to be more descriptive and pleasant to work with

Notes to self:

• In builder/DEMinerFactory the buildHPO function is overwritten with a custom version but not in LSQ (and now classification). Investigate why
• Investigate if any special adjustments need to be made for HPO and fitter type classification

@krsgpp