minor fix LayoutOperations::parameters, added parameter layout_signal_TSV_clustering,
      which was previously in FloorPlanner::SA_parameters and was overlooked during
      previous merge after refactoring; related updates
      FloorPlanner::evaluateInterconnects and IO::parseParametersFiles
minor refactoring LayoutOperations::parameters, dropped prefix layout_; related updates
classes IO, FloorPlanner, and LayoutOperations
major refactoring class FloorPlanner, moved FloorPlanner::clusterSignalTSVs to dedicated
class Clustering::clusterSignalTSVs; related updates classes FloorPlanner, IO, Net, and
ThermalAnalyzer
minor update comments in class Net
minor update class IO, included header of class Clustering
updates class Clustering, update function parameters and notation; related updates class
FloorPlanner
minor update Clustering::determineHotspots, update dbg output and some data initialization
update Clustering::determineHotspots, update hotspot-region score calculation
update Clustering::determineHotspots, moved reset of hotspot regions and bin-hotspot
associations here, added final re-ordering of hotspot regions according to their score;
related updates Clustering::clusterSignalTSVs
update ThermalAnalyzer::ThermalMapBin, added bb; related updates
ThermalAnalyzer::initThermalMap and FloorPlanner::initThermalAnalyzer
major update Clustering::clusterSignalTSVs; related updates classes Clustering,
      FloorPlanner and Net
minor update Clustering::clusterSignalTSVs, renamed iterators
fix Clustering::clusterSignalTSVs, fix reset of cluster flags