runtime/disputes: slashing (#5535)

* disputes: runtime part of slashing

* disputes: reward winners

* disputes/slashing: validate_unsigned impl

* fmt

* disputes/slashing: report_dispute_lost_unsigned

* disputes/slashing: separate winners from losers and report winners

* disputes/slashing: refactoring

* impl HandleReports

* enable on Wenstend

* fmt

* add slashing pallet to the mock and test runtimes

* fix a bug in report_dispute_lost_unsigned

* fmt

* disputes: remove new_participants from summary

* disputes: remove punish_inconclusive

* impl SlashingHandler for Pallet for type-safety

* do not impl slashing::Config on mainnets yet

* teach spellcheck deduplication

* simplify interfaces and resolve some TODOs

* resolve some more TODOs

* minor typos

* move slashing into a folder

* remove unnecessary clone

* fix validator_set_count calculation

* introduce ValidatorSetCount

* store ValidatorSetCount

* fmt

* add the benchmark

* fmt

* unflatten slashing

* post-rebase fixes

* remove winners eagerly

* use real slashing weights for westend

* remove bench test suite

* zombinet: modify disputes test to check for an offence report

* zombinet: add a timeout

* add slashing pallet to Rococo

* zombienet: revert back to rococo-local

* fmt

* remove TODOs

* revert some accidental changes

* slashing is submodule of disputes

* Change the log target

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

* wrap comments with rustfmt, more docs, constants

* use Defensive trait

* cargo update -p sp-io

* merge offence types, remove rewards for now

* cargo update -p sp-io

* benchmark fixes

* fmt

* unused var

* fix block_author impl

* ressurect RewardValidators trait

* remove outdated comment

* more module docs

* introduce BenchmarkingConfig

* typo fix

* teach spellcheck unapplied

* use Weight::new()

* fix mocking rewards

* use RefTimeWeight

* ".git/.scripts/bench-bot.sh" runtime westend-dev runtime_parachains::disputes::slashing

* refactor maybe_identify_validators

* no more ticket in disguise

* remove outdated comments

* lower against valid to 0.1%

* bump zombienet version for debug

* use from_perthousand

* post-merge fixes

* another day, another Weight changes

* Revert "bump zombienet version for debug"

This reverts commit 0d9978711f8ec9a746a5e1c45e8ffbe7c75e7b5c.

* do not reward block authors

* fix outdated comment

* use Pays from frame_support::dispatch::Pays

* add timeout to is up

Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>
Co-authored-by: command-bot <>
Co-authored-by: Javier Viola <javier@parity.io>
Co-authored-by: Javier Viola <pepoviola@gmail.com>