Rococo/Westend Coretime Runtime

New runtimes for the Coretime Chain (a.k.a. "Broker Chain") described in
RFC-1.

Replaces https://github.com/paritytech/cumulus/pull/2889


- [x] Add Agile Coretime pallet
https://github.com/paritytech/substrate/pull/14568
- [x] Generate chain specs for local and testnets
- [x] Deploy parachain on Rococo - Done:
[rococo-coretime-rpc.polkadot.io](https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Frococo-coretime-rpc.polkadot.io#/explorer)

DevOps issue for Aura keygen:
https://github.com/paritytech/devops/issues/2725

Edit (Dónal): This PR is mainly for Rococo, the Westend runtime is a
shell with no `Broker` pallet. The Rococo runtime has the broker calls
filtered for initial deployment.

---------

Co-authored-by: Dónal Murray <donal.murray@parity.io>
Co-authored-by: 0xmovses <r.v.melkonian@gmail.com>
Co-authored-by: Liam Aharon <liam.aharon@hotmail.com>
Co-authored-by: Bastian Köcher <git@kchr.de>
Co-authored-by: Marcin S. <marcin@realemail.net>
Co-authored-by: Bastian Köcher <info@kchr.de>
Co-authored-by: command-bot <>
Co-authored-by: Branislav Kontur <bkontur@gmail.com>

Cargo.lock

@@ -2971,6 +2971,133 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "coretime-rococo-runtime"
+version = "0.1.0"
+dependencies = [
+ "cumulus-pallet-aura-ext",
+ "cumulus-pallet-parachain-system",
+ "cumulus-pallet-session-benchmarking",
+ "cumulus-pallet-xcm",
+ "cumulus-pallet-xcmp-queue",
+ "cumulus-primitives-core",
+ "cumulus-primitives-utility",
+ "frame-benchmarking",
+ "frame-executive",
+ "frame-support",
+ "frame-system",
+ "frame-system-benchmarking",
+ "frame-system-rpc-runtime-api",
+ "frame-try-runtime",
+ "hex-literal",
+ "log",
+ "pallet-aura",
+ "pallet-authorship",
+ "pallet-balances",
+ "pallet-broker",
+ "pallet-collator-selection",
+ "pallet-message-queue",
+ "pallet-multisig",
+ "pallet-session",
+ "pallet-sudo",
+ "pallet-timestamp",
+ "pallet-transaction-payment",
+ "pallet-transaction-payment-rpc-runtime-api",
+ "pallet-utility",
+ "pallet-xcm",
+ "pallet-xcm-benchmarks",
+ "parachains-common",
+ "parity-scale-codec",
+ "polkadot-core-primitives",
+ "polkadot-parachain-primitives",
+ "polkadot-runtime-common",
+ "rococo-runtime-constants",
+ "scale-info",
+ "serde",
+ "smallvec",
+ "sp-api",
+ "sp-block-builder",
+ "sp-consensus-aura",
+ "sp-core",
+ "sp-genesis-builder",
+ "sp-inherents",
+ "sp-offchain",
+ "sp-runtime",
+ "sp-session",
+ "sp-std 8.0.0",
+ "sp-storage 13.0.0",
+ "sp-transaction-pool",
+ "sp-version",
+ "staging-parachain-info",
+ "staging-xcm",
+ "staging-xcm-builder",
+ "staging-xcm-executor",
+ "substrate-wasm-builder",
+]
+
+[[package]]
+name = "coretime-westend-runtime"
+version = "0.1.0"
+dependencies = [
+ "cumulus-pallet-aura-ext",
+ "cumulus-pallet-parachain-system",
+ "cumulus-pallet-session-benchmarking",
+ "cumulus-pallet-xcm",
+ "cumulus-pallet-xcmp-queue",
+ "cumulus-primitives-core",
+ "cumulus-primitives-utility",
+ "frame-benchmarking",
+ "frame-executive",
+ "frame-support",
+ "frame-system",
+ "frame-system-benchmarking",
+ "frame-system-rpc-runtime-api",
+ "frame-try-runtime",
+ "hex-literal",
+ "log",
+ "pallet-aura",
+ "pallet-authorship",
+ "pallet-balances",
+ "pallet-collator-selection",
+ "pallet-message-queue",
+ "pallet-multisig",
+ "pallet-session",
+ "pallet-sudo",
+ "pallet-timestamp",
+ "pallet-transaction-payment",
+ "pallet-transaction-payment-rpc-runtime-api",
+ "pallet-utility",
+ "pallet-xcm",
+ "pallet-xcm-benchmarks",
+ "parachains-common",
+ "parity-scale-codec",
+ "polkadot-core-primitives",
+ "polkadot-parachain-primitives",
+ "polkadot-runtime-common",
+ "scale-info",
+ "serde",
+ "smallvec",
+ "sp-api",
+ "sp-block-builder",
+ "sp-consensus-aura",
+ "sp-core",
+ "sp-genesis-builder",
+ "sp-inherents",
+ "sp-offchain",
+ "sp-runtime",
+ "sp-session",
+ "sp-std 8.0.0",
+ "sp-storage 13.0.0",
+ "sp-transaction-pool",
+ "sp-version",
+ "staging-parachain-info",
+ "staging-xcm",
+ "staging-xcm-builder",
+ "staging-xcm-executor",
+ "substrate-wasm-builder",
+ "westend-runtime-constants",
+]
+
 [[package]]
 name = "cpp_demangle"
 version = "0.3.5"
@@ -12798,6 +12925,8 @@ dependencies = [
  "collectives-westend-runtime",
  "color-print",
  "contracts-rococo-runtime",
+ "coretime-rococo-runtime",
+ "coretime-westend-runtime",
  "cumulus-client-cli",
  "cumulus-client-collator",
  "cumulus-client-consensus-aura",