Propose a metrics interface

Bench.cpp

@@ -358,7 +358,26 @@ void benchWorstCaseForRadixRangeRead() {
   // }
 }
 
+void benchMetrics() {
+  ankerl::nanobench::Bench bench;
+  ConflictSet cs{0};
+
+  bench.run("metrics", [&]() {
+    ConflictSet::MetricsV1 *m;
+    int count;
+    cs.getMetricsV1(&m, &count);
+  });
+}
+
+void benchCreateAndDestroy() {
+  ankerl::nanobench::Bench bench;
+
+  bench.run("create and destroy", [&]() { ConflictSet cs{0}; });
+}
+
 int main(void) {
   benchConflictSet();
   benchWorstCaseForRadixRangeRead();
+  benchMetrics();
+  benchCreateAndDestroy();
 }