Rococo/Wococo bridge hub relay integration (#1565)

* [BridgeHub] Added bridge-hub-rococo/wococo clients with bridge-hub-rococo-runtime

* [BridgeHub] Add init-bridge stuff for bridge-hub-rococo/wococo

* [BridgeHub] Add init-bridge stuff for bridge-hub-rococo/wococo

* [BridgeHub] Fixed Call-encoding for init-bridge rococo runtime wrapper

* Final index update to runtime calls

* [BridgeHub] Add init-bridge stuff for bridge-hub-rococo/wococo (otherside)

* Added runtime best_finalized functions + relay-headers init

* Renaming and change BridgeHubRococo/Wococo to Rococo/Wococo config

* [BridgeHub] Add relay-parachains (Rococo/Wococo)

* Missing stuff for adding xcm messaging to BridgeHub

* extracted parachain IDs to the primitives

* fix compilation

* Fixes

* Init setup for Rococo->Wococo messaging support

* Removed unused AccountId from `trait MessagesBridge`

* Removed unused trait SenderOrigin

* Small fixes

* Cleaning after master-merge

* Fixes

* Fixes

* Fixes

* Fixes

* Fixes:
- align WeightToFee with BridgeHubRococo runtime
- MAX_HEADER_SIZE
- updated TODOs

* Added relay_messages cfg for BridgeHubWococo -> BridgeHubRococo

Co-authored-by: Svyatoslav Nikolsky <svyatonik@gmail.com>

bridges/primitives/chain-bridge-hub-wococo/src/lib.rs

@@ -0,0 +1,49 @@
+// Copyright 2019-2021 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
+//! Module with configuration which reflects BridgeHubWococo runtime setup
+//! (AccountId, Headers, Hashes...)
+//!
+//! but actually this is just reexported BridgeHubRococo stuff, because they are supposed to be
+//! identical, at least uses the same parachain runtime
+
+#![cfg_attr(not(feature = "std"), no_std)]
+
+// Re-export only what is really needed
+pub use bp_bridge_hub_rococo::{
+	account_info_storage_key, AccountId, AccountPublic, AccountSigner, Address, Balance,
+	BlockNumber, Hash, Hashing, Header, Nonce, SS58Prefix, Signature, SignedBlock,
+	SignedExtensions, UncheckedExtrinsic, WeightToFee, ADDITIONAL_MESSAGE_BYTE_DELIVERY_WEIGHT,
+	DEFAULT_MESSAGE_DELIVERY_TX_WEIGHT, EXTRA_STORAGE_PROOF_SIZE,
+	MAX_SINGLE_MESSAGE_DELIVERY_CONFIRMATION_TX_WEIGHT,
+	MAX_UNCONFIRMED_MESSAGES_IN_CONFIRMATION_TX, MAX_UNREWARDED_RELAYERS_IN_CONFIRMATION_TX,
+	PAY_INBOUND_DISPATCH_FEE_WEIGHT, TX_EXTRA_BYTES,
+};
+use bp_messages::*;
+use bp_runtime::{decl_bridge_finality_runtime_apis, decl_bridge_messages_runtime_apis};
+use frame_support::{sp_runtime::FixedU128, Parameter};
+use sp_std::prelude::*;
+
+pub type BridgeHubWococo = bp_bridge_hub_rococo::BridgeHubRococo;
+
+/// Identifier of BridgeHubWococo in the Wococo relay chain.
+pub const BRIDGE_HUB_WOCOCO_PARACHAIN_ID: u32 = 1013;
+
+/// Name of the With-BridgeHubWococo messages pallet instance that is deployed at bridged chains.
+pub const WITH_BRIDGE_HUB_WOCOCO_MESSAGES_PALLET_NAME: &str = "BridgeWococoMessages";
+
+decl_bridge_finality_runtime_apis!(bridge_hub_wococo);
+decl_bridge_messages_runtime_apis!(bridge_hub_wococo);