Add bench_runtime_local command to collector and a simple hashmap runtime benchmark

Author: Kobzol

Cargo.lock

@@ -1,6 +1,6 @@
 [workspace]
 members = ["collector", "collector/benchlib", "site", "database", "intern"]
-exclude = ["collector/compile-benchmarks", "rust/src"]
+exclude = ["collector/compile-benchmarks", "collector/runtime-benchmarks", "rust/src"]
 
 [profile.release.package.site]
 debug = 1

Cargo.toml

@@ -33,6 +33,8 @@ filetime = "0.2.14"
 walkdir = "2"
 flate2 = { version = "1.0.22", features = ["rust_backend"] }
 rayon = "1.5.2"
+cargo_metadata = "0.15.0"
+benchlib = { path = "benchlib" }
 
 [target.'cfg(windows)'.dependencies]
 miow = "0.3"