Merge pull request #2900 from peterhuene/benchmark-instantiation

Implement simple benchmarks for instantiation.

Cargo.lock

@@ -3575,6 +3575,7 @@ name = "wasmtime-cli"
 version = "0.26.0"
 dependencies = [
  "anyhow",
+ "criterion",
  "env_logger 0.8.3",
  "file-per-thread-logger",
  "filecheck",
@@ -3583,6 +3584,7 @@ dependencies = [
  "libc",
  "log",
  "more-asserts",
+ "num_cpus",
  "object",
  "pretty_env_logger",
  "rayon",