* reorganize and optimize

* Update bin/node/testing/benches/import.rs

Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com>

* Update bin/node/testing/benches/import.rs

Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com>

* Update bin/node/testing/benches/import.rs

Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com>

* review suggestions

* fix build

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* update benchmark arguments

* even more samples since it is fast now

* Refactor BlockImportParams to be non_exhaustive

* Fix cargo check compile

* full block import benchmark

* try rocksdb cache

* add profiling helper

* use random keyring instead of zero caching

* update docs

* add more io stats

* remove last sentence

* add ci job to see

* Update primitives/keyring/src/sr25519.rs

Co-Authored-By: Marcio Diaz <marcio.diaz@gmail.com>

* switch to 100tx-block

* remove ci script

Co-authored-by: Marcio Diaz <marcio@parity.io>