Allow staking miner to use different election algorithms (#3752)

* WIP

* Dry run cmd working

* Monitor cmd works

* Configure balance with parameter type

* Comments

* cleannnn

* Add balancing to PhragMMS

* Move OffchainRanomBalancing to common

* DRY mine_unchecked over config.solver

* FMT

* Apply suggestions from code review

Co-authored-by: Kian Paimani <[email protected]>

* Improve docs for any_runtime_unit!

* Some cleanup

* fmt

* Correct capitilaztion

* Improve version mismatch log

* Revert "Improve version mismatch log"

This reverts commit 57570403f654f1efa4307956cda2de6f0c64f70a.

* Apply suggestions from code review

Co-authored-by: Kian Paimani <[email protected]>

* Remove Balancing struct and use Balancing Parameter type instead

* update Substrate

Co-authored-by: Kian Paimani <[email protected]>
Co-authored-by: parity-processbot <>