Serialization of the old Kieker analysis configuration into a model

There is some strange code which is not really used anywhere except in the AnalysisController. However, the particular functionality of the AnalysisController seems not to be used. The repsective functionality is implemented in kieker.analysis.model.MetaModelHandler.

The functionality uses the AnalysisMetaModel metamodel (should actually be named AnalysisModel or AnalysisConfigurationModel, AnalysisCompositionModel or AnalysisArchitectureModel) to represent a set of filters, repositories and their connections. I would assume that this functionality is deprecated.