utl/metrics -- update MetricsPolicy as examples
utl/metrics -- update MetricsPolicy as examples

Signed-off-by: Ravi Varadarajan <7f1600b15de5bdc6ecd04b0bc7ba0a2de1f18226@or-2.ucsd.edu>

QuantamHD/OpenROAD,QuantamHD/OpenROAD,The-OpenROAD-Project/OpenROAD,The-OpenROAD-Project/OpenROAD,The-OpenROAD-Project/OpenROAD,The-OpenROAD-Project/OpenROAD,QuantamHD/OpenROAD,QuantamHD/OpenROAD,QuantamHD/OpenROAD,The-OpenROAD-Project/OpenROAD