Submit exchange transactions to PoA node (#229)

* submit Eth exchange transactions

* submit ethereum in docker-compose

* submit Eth exchange transactions

* fix duplicate message

* fix relay script

* lost file

* cargo fmt --all

* cargo +nightly clippy

* Show sccache

* remove test-helpers remains

* what's going on with jsonrpsee + Cargo.lock?

* relay-eth-submit-exchange-tx -> poa-exchange-tx-generator

* Update relays/ethereum/src/main.rs

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* configuring exchange-gen loop using env variables

* fixed signer account from dev chain to Arthur

* improve debug prints

* parse nonce from relay output

* --eth-nonce=

* fix compilation

* cargo fmt --all

* fix typo

* duplicate relay output to tty

* allow using from bash scripts tests

* fix: U256::parse() expects hex string :/

* cargo fmt --all

* BRIDGE_HASH: ${BRIDGE_HASH:-master}

* script comment

* generate exchange PoA transactions by Bertha

* Bertha address

Co-authored-by: Denis S. Soldatov aka General-Beck <general.beck@gmail.com>
Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

bridges/modules/ethereum/Cargo.toml

@@ -59,7 +59,7 @@ features = ["hmac"]
 # Dev Dependencies
 [dev-dependencies]
 # TODO: Stop renaming this on import
-primitives = { package = "sp-bridge-eth-poa", path = "../../primitives/ethereum-poa", features = ["std", "test-helpers"] }
+primitives = { package = "sp-bridge-eth-poa", path = "../../primitives/ethereum-poa", features = ["std"] }
 libsecp256k1 = { version = "0.3.4", features = ["hmac"] }
 
 [features]
@@ -78,5 +78,4 @@ std = [
 runtime-benchmarks = [
 	"frame-benchmarking",
 	"libsecp256k1",
-	"primitives/test-helpers",
 ]