* Add Rococo and Wococo types to common.json

* Add Rococo/Wococo specific JSON definitions

* Add Rococo/Wococo support to types build script

* Get updated type definitions from build script

* Split bridge-pair specific definitions from `common.json`

* Get new type definitions from build script

* Make Wococo types reference Rococo types

Types in Wococo should always match those of Rococo since they use
the same runtime.

* Use default Header type for Rococo and Wococo headers

* Build new Rococo and Wococo type definitions

* revert to use InspectCmd

* rust toolchain 1.52

* Bump `finality-grandpa` and `parity-scale-codec`

* bump to same version for substrate as polkadot v0.9.1

* bump to polkadot 0.9.2 deps for substrate `6bef4f4`

Co-authored-by: Hernando Castano <[email protected]>

* serve multiple lanes with single complex relay instance

* Update relays/bin-substrate/src/cli/relay_headers_and_messages.rs

Co-authored-by: Hernando Castano <[email protected]>

* revert default value removal

Co-authored-by: Hernando Castano <[email protected]>

* start finality relay guards

* comment

* Bump Rococo's spec_version

* Use dev node for Rococo helper script

* Add helper scripts for relaying Rococo<>Wococo headers

* Change Wococo<>Rococo scripts to use Alice for initialization

* Add Wococo node helper script