Salary pallet (#13378)

* More drafting

* Paymaster pallet

* Fix build

* More tests

* Rename

* Rename

* Renaming

* Revert old changes

* Multi-phase payouts to avoid bank-runs

* Tests

* Tests

* Allow payment to be targeted elsewhere

* Proper ssync payment failure handling

* Test for repayment

* Docs

* Impl RankedMembers for RankedCollective

* Implement Pay for Pot (i.e. basic account).

* Benchmarks

* Weights

* Introduce Salary benchmark into node

* Fix warning

* ".git/.scripts/commands/bench/bench.sh" pallet dev pallet_salary

* Update primitives/arithmetic/src/traits.rs

Co-authored-by: Jegor Sidorenko <5252494+jsidorenko@users.noreply.github.com>

* Update frame/salary/src/lib.rs

Co-authored-by: Jegor Sidorenko <5252494+jsidorenko@users.noreply.github.com>

* Update lib.rs

* Update frame/salary/src/lib.rs

Co-authored-by: joe petrowski <25483142+joepetrowski@users.noreply.github.com>

* Docs

* Update frame/salary/src/lib.rs

Co-authored-by: joe petrowski <25483142+joepetrowski@users.noreply.github.com>

* Update frame/salary/src/lib.rs

Co-authored-by: joe petrowski <25483142+joepetrowski@users.noreply.github.com>

* Fix

* Fixes

* Fixes

* Move some salary traits stuff to a shared location

* Fix

* Update frame/salary/src/lib.rs

Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Update frame/salary/src/lib.rs

Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Mul floor

* Fix warnings

* Fix test

* Docs

---------

Co-authored-by: command-bot <>
Co-authored-by: Jegor Sidorenko <5252494+jsidorenko@users.noreply.github.com>
Co-authored-by: joe petrowski <25483142+joepetrowski@users.noreply.github.com>
Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

substrate/Cargo.lock

@@ -3542,6 +3542,7 @@ dependencies = [
  "pallet-referenda",
  "pallet-remark",
  "pallet-root-testing",
+ "pallet-salary",
  "pallet-scheduler",
  "pallet-session",
  "pallet-session-benchmarking",
@@ -6362,6 +6363,23 @@ dependencies = [
  "sp-std",
 ]
 
+[[package]]
+name = "pallet-salary"
+version = "4.0.0-dev"
+dependencies = [
+ "frame-benchmarking",
+ "frame-support",
+ "frame-system",
+ "log",
+ "parity-scale-codec",
+ "scale-info",
+ "sp-arithmetic",
+ "sp-core",
+ "sp-io",
+ "sp-runtime",
+ "sp-std",
+]
+
 [[package]]
 name = "pallet-scheduler"
 version = "4.0.0-dev"