[encointer] introduce swap options for businesses through democracy (#…

…541)

This introduces new functionality for Encointer communities:
* democracy proposals can grant swap options to businesses for them to
swap community currency for KSM from the community treasury. relevant
pallet changes: encointer/pallets#411

### Motivation

In order for community treasuries holding KSM to act as a reserve for
community currencies, we need to enable some form of swap functionality.
This functionality, however, needs to be permissioned, as we can't allow
everyone to "exit" the demurrage-bearing community currency as this
would undermine the community currency and deplete the treasury for no
good.
Businesses making real turnover in community currency, however, should
have an option to reduce their exposure. Otherwise, the most popular
businesses will be punished by bearing the greatest risk by accumulating
community currency before economic circles can be closed (which will
eventually allow them to spend their community currency on goods and
services they need).
The best available source of information which businesses add real value
to the community is the community members. Therefore, we let the
community vote on swap allowances for businesses using Encointer's
personhood-based democracy process.

---------

Co-authored-by: Adrian Catangiu <adrian@parity.io>

CHANGELOG.md

@@ -20,6 +20,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Location conversion tests for relays and parachains ([polkadot-fellows/runtimes#487](https://github.com/polkadot-fellows/runtimes/pull/487))
 
 - ParaRegistration proxy for Polkadot and Kusama ([polkadot-fellows/runtimes#520](https://github.com/polkadot-fellows/runtimes/pull/520))
+- Encointer: Swap community currency for KSM from community treasuries subject to democratic decision on allowance ([polkadot-fellows/runtimes#541](https://github.com/polkadot-fellows/runtimes/pull/541))
 
 - Delegate stake pools in Kusama ([polkadot-fellows/runtimes#540](https://github.com/polkadot-fellows/runtimes/pull/540))
 

Cargo.toml

@@ -62,7 +62,7 @@ emulated-integration-tests-common = { version = "14.1.0" }
 encointer-balances-tx-payment = { version = "~14.1.0", default-features = false }
 encointer-balances-tx-payment-rpc-runtime-api = { version = "~14.1.0", default-features = false }
 encointer-kusama-runtime = { path = "system-parachains/encointer" }
-encointer-primitives = { version = "~14.3.0", default-features = false }
+encointer-primitives = { version = "~14.4.0", default-features = false }
 enumflags2 = { version = "0.7.7" }
 frame-benchmarking = { version = "38.0.0", default-features = false }
 frame-election-provider-support = { version = "38.0.0", default-features = false }
@@ -109,18 +109,18 @@ pallet-conviction-voting = { version = "38.0.0", default-features = false }
 pallet-core-fellowship = { version = "22.0.0", default-features = false }
 pallet-election-provider-multi-phase = { version = "37.0.0", default-features = false }
 pallet-election-provider-support-benchmarking = { version = "37.0.0", default-features = false }
-pallet-encointer-balances = { version = "~14.1.0", default-features = false }
+pallet-encointer-balances = { version = "~14.2.0", default-features = false }
 pallet-encointer-bazaar = { version = "~14.1.0", default-features = false }
 pallet-encointer-bazaar-rpc-runtime-api = { version = "~14.1.0", default-features = false }
 pallet-encointer-ceremonies = { version = "~14.1.0", default-features = false }
 pallet-encointer-ceremonies-rpc-runtime-api = { version = "~14.1.0", default-features = false }
 pallet-encointer-communities = { version = "~14.1.0", default-features = false }
 pallet-encointer-communities-rpc-runtime-api = { version = "~14.1.0", default-features = false }
-pallet-encointer-democracy = { version = "~14.3.2", default-features = false }
+pallet-encointer-democracy = { version = "~14.4.0", default-features = false }
 pallet-encointer-faucet = { version = "~14.2.0", default-features = false }
 pallet-encointer-reputation-commitments = { version = "~14.1.0", default-features = false }
 pallet-encointer-scheduler = { version = "~14.1.0", default-features = false }
-pallet-encointer-treasuries = { version = "~14.3.0", default-features = false }
+pallet-encointer-treasuries = { version = "~14.4.1", default-features = false }
 pallet-encointer-treasuries-rpc-runtime-api = { version = "~14.3.0", default-features = false }
 pallet-fast-unstake = { version = "37.0.0", default-features = false }
 pallet-glutton = { version = "24.0.0", default-features = false }

system-parachains/encointer/src/lib.rs

@@ -562,6 +562,7 @@ impl pallet_encointer_treasuries::Config for Runtime {
 	type RuntimeEvent = RuntimeEvent;
 	type Currency = pallet_balances::Pallet<Runtime>;
 	type PalletId = TreasuriesPalletId;
+	type WeightInfo = weights::pallet_encointer_treasuries::WeightInfo<Runtime>;
 }
 
 impl pallet_aura::Config for Runtime {
@@ -849,6 +850,7 @@ mod benches {
 		[pallet_encointer_faucet, EncointerFaucet]
 		[pallet_encointer_reputation_commitments, EncointerReputationCommitments]
 		[pallet_encointer_scheduler, EncointerScheduler]
+		[pallet_encointer_treasuries, EncointerTreasuries]
 		[cumulus_pallet_parachain_system, ParachainSystem]
 		[cumulus_pallet_xcmp_queue, XcmpQueue]
 		// XCM