Add benchmarks using library interface

benches/run_iai.rs

@@ -0,0 +1,21 @@
+use iai_callgrind::{library_benchmark, library_benchmark_group, main};
+
+mod setup;
+
+#[library_benchmark]
+#[bench::normal(setup::benches())]
+fn bench_edges(mut b: setup::Benches) {
+    b.run_once("count_edges_short");
+}
+
+#[library_benchmark]
+#[bench::normal(setup::benches())]
+fn bench_numlist(mut b: setup::Benches) {
+    b.run_once("numlist_short");
+}
+
+library_benchmark_group!(
+    name = bench_group;
+    benchmarks = bench_edges, bench_numlist
+);
+main!(library_benchmark_groups = bench_group);