Add verify block to benchmark tests (#5551)

* Add verify block to benchmarks macro.

* Update all benchmarks.

* Add tests, add params.

* Should panic.

* ups, add closures

* Update tests.rs

* update macro syntax

* Revert benchmark syntax change

* verify only in tests

* Update tests.rs

* Uncomment staking

* Fix tests for benchmark instance

* Add docs

* Update frame/benchmarking/src/lib.rs

* add trace logs to benchmarks

* Verify returns closure

Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>