FT: streamline cluster monitors
FTNZSClusterMonitor was created to compare the FPGA clustering with the software clustering. However, there are no plots that combine informations from both types. Therefore all plots can also be plotted using the FTClusterMonitor if you point it to the correct location and it is less work to maintain only FTClusterMonitor.
This MR removes the FTNZSClusterMonitor and moves all histograms from ClusterMonitor.h into FTClusterMonitor. Tests are changed accordingly (two tests for the NZS clustering). Also removes out of date options files, as there are examples in the test folder.