Enable bags-list pallet in polkadot (#4080)

* Enable bags-list pallet in polkadot

* add files

* Remove trailing semicolon

* more fixes

* Update runtime/polkadot/src/lib.rs

* add features

* remove par

Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>
Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>

polkadot/runtime/kusama/src/lib.rs

@@ -101,7 +101,7 @@ use constants::{currency::*, fee::*, time::*};
 mod weights;
 
 // Voter bag threshold definitions.
-mod voter_bags;
+mod bag_thresholds;
 
 #[cfg(test)]
 mod tests;
@@ -409,7 +409,7 @@ impl pallet_election_provider_multi_phase::Config for Runtime {
 }
 
 parameter_types! {
-	pub const BagThresholds: &'static [u64] = &voter_bags::THRESHOLDS;
+	pub const BagThresholds: &'static [u64] = &bag_thresholds::THRESHOLDS;
 }
 
 impl pallet_bags_list::Config for Runtime {
@@ -525,8 +525,7 @@ impl pallet_staking::Config for Runtime {
 	type NextNewSession = Session;
 	type MaxNominatorRewardedPerValidator = MaxNominatorRewardedPerValidator;
 	type OffendingValidatorsThreshold = OffendingValidatorsThreshold;
-	// Use the nominators map to iter voters, but also perform the bags-list migration and keep
-	// it up-to-date.
+	// Use the nominators map to iter voters, but also keep bags-list up-to-date.
 	type SortedListProvider = runtime_common::elections::UseNominatorsAndUpdateBagsList<Runtime>;
 	type WeightInfo = weights::pallet_staking::WeightInfo<Runtime>;
 }
@@ -1079,7 +1078,8 @@ impl InstanceFilter<Call> for ProxyType {
 				Call::Registrar(paras_registrar::Call::reserve {..}) |
 				Call::Crowdloan(..) |
 				Call::Slots(..) |
-				Call::Auctions(..) // Specifically omitting the entire XCM Pallet
+				Call::Auctions(..) | // Specifically omitting the entire XCM Pallet
+				Call::BagsList(..)
 			),
 			ProxyType::Governance => matches!(
 				c,