* bump pallet to frame v2

* line width

* get benchmarking ot compile

* fix benchmarking now

* should actually fix benchmark

* make docs prettier

* add dependency

* add metadata

* Update frame/identity/src/benchmarking.rs

Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>

Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>