Create Benchmarking Setup for Identity Pallet #4695 (#4818)

* Starting

* closer

* Compiles!

* comments

* Create seperate mock

* Remove changes to test env

* Fix step calculation

* Add host function

* Add runtime api

* compiles

* Update to use offchain timestamp

* Gives a result

* added some CLI wip

* make generic

* Update instance

* Remove CLI stuff

* Remove last cli stuff

* undo more changes

* Update benchmarks

* Update Cargo.lock

* remove test

* Move loop out of runtime

* Benchmarking externalities

* Benchmarking state

* Implemented commit

* Make CLI work, move loop back into runtime

* Wipe resets to genesis

* Speedup benchmarks

* Use enum to select extrinsic within pallet

* CLI controls which module and extrinsic to call

* Select a pallet with cli

* Add steps and repeats to cli

* Output as CSV format

* Introduce benchmark pallet

* Append bench

* Use Results

* fix merge

* Clear Identity benchmark

* Bench request judgment and cancel request

* Add final benchmarks

* Fix CSV output

* Start cleaning up for PR

* Bump numbers in `wasmtime` integration tests.

* More docs

* Add rockdb feature to bench

* Fix formatting issues

* Add test feature to bench

* Add test feature to bench

* Add rocksdb feature flag

* Update bench.rs

Co-authored-by: Arkadiy Paronyan <arkady.paronyan@gmail.com>
Co-authored-by: Gavin Wood <github@gavwood.com>

substrate/primitives/state-machine/src/backend.rs

@@ -213,6 +213,16 @@ pub trait Backend<H: Hasher>: std::fmt::Debug {
 	fn usage_info(&self) -> UsageInfo {
 		UsageInfo::empty()
 	}
+
+	/// Wipe the state database.
+	fn wipe(&self) -> Result<(), Self::Error> {
+		unimplemented!()
+	}
+
+	/// Commit given transaction to storage.
+	fn commit(&self, _storage_root: H::Out, _transaction: Self::Transaction) -> Result<(), Self::Error> {
+		unimplemented!()
+	}
 }
 
 impl<'a, T: Backend<H>, H: Hasher> Backend<H> for &'a T {