Add example of a runtime benchmark suite

Author: Kobzol

Cargo.lock

@@ -33,6 +33,7 @@ filetime = "0.2.14"
 walkdir = "2"
 flate2 = { version = "1.0.22", features = ["rust_backend"] }
 rayon = "1.5.2"
+cargo_metadata = "0.15.0"
 
 [target.'cfg(windows)'.dependencies]
 miow = "0.3"