Rialto test network setup (#163)

* Dockerfile for OpenEth.

* Add relayer dockerfile.

* Add docker-compose.

* Working on the relay.

* Bump a bunch of deps.

* Change relay branch.

* Running a 3-validators poa network.

* Add bridge nodes.

* Conditional compilation of bridge configs.

* Fix genesis hash.

* Disable features build.

* Disable empty steps.

* Work on sub2eth

* Add some logs.

* More logs.

* Fix compilation.

* Add chain-id parameter to relay.

* Unify bridge-hash.

* Update the hash.

* Ditch sub2eth for now.

* Add some docs & proxy configuration.

* Fixes.

* Fix remaining issues.

* Increase health timeout.

* Make sure to install curl for health monitoring.

* Fix kovan.

* Fix build.

* Create if does not exist.

* Fix benches.

* Revert CLI params requirements.

* cargo fmt --all

* Apply suggestions from code review

Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com>

* Add some docs.

* Update BRIDGE_HASH to master

* Duplicate compose file.

* Rename testpoa to Rialto.

* Fix borked merge.

* Fix entrypoints to take arguments.

Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com>

bridges/relays/ethereum/src/cli.yml

@@ -53,6 +53,10 @@ subcommands:
                 value_name: ETH_CONTRACT
                 help: Address of deployed bridge contract.
                 takes_value: true
+            - eth-chain-id: &eth-chain-id
+                long: eth-chain-id
+                value_name: ETH_CHAIN_ID
+                help: Chain ID to use for signing.
             - eth-signer: &eth-signer
                 long: eth-signer
                 value_name: ETH_SIGNER
@@ -65,6 +69,7 @@ subcommands:
             - eth-host: *eth-host
             - eth-port: *eth-port
             - eth-signer: *eth-signer
+            - eth-chain-id: *eth-chain-id
             - eth-contract-code:
                 long: eth-contract-code
                 value_name: ETH_CONTRACT_CODE