Runtime: Polkadot Fellowship promotion/demotion periods, members activity and salaries (#2607)

* core fellowship

* core fellowship weights

* salary

* weights

* fellowship pot

* registration period 15 days

* use treasury account for salary pay, promotion origin

* decision period for tracks 30 days

* docs

* comment

* Couple of fixes and some refactoring

* Alter curves to be a bit more conservative

* Use `PayOverXcm` for fellowship salary payments

* Docs and remove unneeded code

* Fixes

* Move Fellowship stuff in line with whitepaper

* fix: induction by a single Fellow (not proficient)

* doc fix

* renames, pallet index, allow unpaid for salary pallet

* Fix budget units

* Fixes

* Test sovereign account for Fellowship salaries

* Nice address test

* Fixes

* test for PayOverXcm setup

* Update parachains/runtimes/collectives/collectives-polkadot/src/fellowship/mod.rs

Co-authored-by: Bastian Köcher <git@kchr.de>

---------

Co-authored-by: Gav <gavin@parity.io>
Co-authored-by: Bastian Köcher <git@kchr.de>

cumulus/Cargo.lock

@@ -1887,6 +1887,35 @@ dependencies = [
  "unicode-width",
 ]
 
+[[package]]
+name = "collectives-polkadot-it"
+version = "0.1.0"
+dependencies = [
+ "asset-hub-polkadot-runtime",
+ "collectives-polkadot-runtime",
+ "cumulus-pallet-xcmp-queue",
+ "frame-support",
+ "frame-system",
+ "integration-tests-common",
+ "pallet-assets",
+ "pallet-balances",
+ "pallet-core-fellowship",
+ "pallet-salary",
+ "pallet-xcm",
+ "parachains-common",
+ "parity-scale-codec",
+ "polkadot-core-primitives",
+ "polkadot-parachain",
+ "polkadot-runtime",
+ "polkadot-runtime-parachains",
+ "sp-core",
+ "sp-runtime",
+ "sp-weights",
+ "xcm",
+ "xcm-emulator",
+ "xcm-executor",
+]
+
 [[package]]
 name = "collectives-polkadot-runtime"
 version = "1.0.0"
@@ -1915,11 +1944,13 @@ dependencies = [
  "pallet-balances",
  "pallet-collator-selection",
  "pallet-collective",
+ "pallet-core-fellowship",
  "pallet-multisig",
  "pallet-preimage",
  "pallet-proxy",
  "pallet-ranked-collective",
  "pallet-referenda",
+ "pallet-salary",
  "pallet-scheduler",
  "pallet-session",
  "pallet-timestamp",