tests: integration tests with JSON-RPC client (#704)

* tests: integration tests with JSON-RPC client

* fix package

* tests: networking configuration fixed (#706)

* update testnet hdPath, fixes #688

* lint

* header

* e2e wip

* fix getBlock response

* enable personal API

* changelog

Co-authored-by: Guillermo Paoletti <guillermo.paoletti@gmail.com>
Co-authored-by: Freddy Caceres <freddy.caceres@crypto.com>

scripts/integration-test-all.sh

@@ -107,6 +107,7 @@ start_func() {
     "$PWD"/build/ethermintd start --pruning=nothing --rpc.unsafe \
     --p2p.laddr tcp://$IP_ADDR:$NODE_P2P_PORT"$i" --address tcp://$IP_ADDR:$NODE_PORT"$i" --rpc.laddr tcp://$IP_ADDR:$NODE_RPC_PORT"$i" \
     --json-rpc.address=$IP_ADDR:$RPC_PORT"$i" \
+    --json-rpc.api="eth,txpool,personal,net,debug,web3" \
     --keyring-backend test --home "$DATA_DIR$i" \
     >"$DATA_DIR"/node"$i".log 2>&1 & disown