Add Bridge Header Sync to Rococo Runtime (#2983)

* Add bridges code to workspace

* Add Rococo and Wococo bridge instances to Rococo runtime

* Add Rococo and Wococo runtime APIs

* Add GenesisConfig parameters for bridge pallet

* Update Rococo spec_version used by bridge relayer

* Add scripts for running Rococo and Wococo dev nodes

* Add scripts for running Rococo<>Wococo header sync

* Apply patch for build artifact location

* Remove bridges crates from workspace

* Downgrade async related dependencies

* Change bridge pallet owner to be `root_key`

* Bump number of `MaxRequests` allowed

* Revert changes in `bridges` subtree folder

* Use correct account for Sudo

* Add comment explaining duplicate bridge pallets

* Remove WeightInfo comment.

Co-authored-by: Tomasz Drwięga <tomasz@parity.io>

polkadot/Cargo.lock

@@ -704,17 +704,6 @@ dependencies = [
  "sp-std",
 ]
 
-[[package]]
-name = "bp-kusama"
-version = "0.1.0"
-dependencies = [
- "bp-messages",
- "bp-polkadot-core",
- "bp-runtime",
- "sp-api",
- "sp-std",
-]
-
 [[package]]
 name = "bp-messages"
 version = "0.1.0"
@@ -726,17 +715,6 @@ dependencies = [
  "sp-std",
 ]
 
-[[package]]
-name = "bp-polkadot"
-version = "0.1.0"
-dependencies = [
- "bp-messages",
- "bp-polkadot-core",
- "bp-runtime",
- "sp-api",
- "sp-std",
-]
-
 [[package]]
 name = "bp-polkadot-core"
 version = "0.1.0"
@@ -800,7 +778,7 @@ dependencies = [
 ]
 
 [[package]]
-name = "bp-westend"
+name = "bp-wococo"
 version = "0.1.0"
 dependencies = [
  "bp-header-chain",
@@ -4561,6 +4539,28 @@ dependencies = [
  "sp-std",
 ]
 
+[[package]]
+name = "pallet-bridge-grandpa"
+version = "0.1.0"
+dependencies = [
+ "bp-header-chain",
+ "bp-runtime",
+ "bp-test-utils",
+ "finality-grandpa",
+ "frame-benchmarking",
+ "frame-support",
+ "frame-system",
+ "log",
+ "num-traits",
+ "parity-scale-codec",
+ "serde",
+ "sp-finality-grandpa",
+ "sp-io",
+ "sp-runtime",
+ "sp-std",
+ "sp-trie",
+]
+
 [[package]]
 name = "pallet-collective"
 version = "3.0.0"
@@ -7417,6 +7417,8 @@ name = "rococo-runtime"
 version = "0.9.1"
 dependencies = [
  "beefy-primitives",
+ "bp-rococo",
+ "bp-wococo",
  "frame-executive",
  "frame-support",
  "frame-system",
@@ -7428,6 +7430,7 @@ dependencies = [
  "pallet-babe",
  "pallet-balances",
  "pallet-beefy",
+ "pallet-bridge-grandpa",
  "pallet-collective",
  "pallet-grandpa",
  "pallet-im-online",