merged projects HeuristicLab.PluginInfrastructure.Runner and HeuristicLab.PluginInfrastructure
applied changes of code reviews (13.05.2019 and 22.05.2019) -> the old Runner is now RunnerHost and uses a Runner, which is executed on the child process
added Type GetType(string) to IApplicationManager and implemented it for LightweightApplicationManager
removed IActivator and IActivatorContext
deleted unused types like PluginDescriptionIterator