Benchmark Democracy Pallet (#5257)

* Add origin bounds to benchmark macro.

* Add democracy benchmark.

* Fix tests

* Remove collective from frame/benchmarking, partially use EnsureOrigin.

* Remove collective stuff.

* Make previous benches compile again.

* Remove comments.

* Make prev bench to work again.

* Add remove votes.

* Add new proxy calls.

* Add runtime-benchmarks guard to EnsureOrigin and implementations.

* Refactor.

* Add missing import.

* Remove duplicated import

* Fix features.

* Add some missing features.

* Update frame/collective/Cargo.toml

Co-Authored-By: Kian Paimani <5588131+kianenigma@users.noreply.github.com>

* Update frame/democracy/src/benchmarking.rs

Co-Authored-By: Kian Paimani <5588131+kianenigma@users.noreply.github.com>

* Update frame/democracy/src/benchmarking.rs

Co-Authored-By: Kian Paimani <5588131+kianenigma@users.noreply.github.com>

* Add referendums to state.

* populate vecs before call

* Update weight docs

* More fixes and weight docs

* More updates

Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>
Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>

substrate/bin/node/runtime/src/lib.rs

@@ -919,6 +919,13 @@ impl_runtime_apis! {
 					steps,
 					repeat,
 				),
+				b"pallet-democracy" | b"democracy" => Democracy::run_benchmark(
+					extrinsic,
+					lowest_range_values,
+					highest_range_values,
+					steps,
+					repeat,
+				),
 				b"pallet-collective" | b"collective" => Council::run_benchmark(
 					extrinsic,
 					lowest_range_values,