Add builtin derive benchmarks (#791)

Author: rylev

collector/benchmarks/README.md

@@ -110,3 +110,4 @@ programs.
   behavior](https://github.com/rust-lang/rust/issues/65510) (in the number of
   associated type bounds).
 - **externs**: A large amount of extern functions has caused [slowdowns in the past](https://github.com/rust-lang/rust/pull/78448).
+- **derive**: A large amount of simple structs with a `#[derive]` attribute for common built-in traits such as Copy and Debug. 

collector/benchmarks/derive/Cargo.lock

@@ -0,0 +1,8 @@
+[package]
+name = "derive"
+version = "0.1.0"
+edition = "2018"
+
+[dependencies]
+
+[workspace]