made ETHEREUM_NODE_ADD_TRANSCATION_REVERT_REASON flag work!

[manu461]

I was not able to get the revert-reason for the failing transactions in Kafka events, when I looked into the code, then I found that the true flag (value of ETHEREUM_NODE_ADD_TRANSCATION_REVERT_REASON) was not even getting propagated from the environment variable.

After debugging it thoroughly, and spending ~6 hours I found the fix.
internally ethereum.nodes[0].addTransactionRevertReason is being searched in the environment. So, Ideally, the flag should be ETHEREUM_NODES_0_ADD_TRANSACTION_REVERT_REASON (and not ETHEREUM_NODE_ADD_TRANSCATION_REVERT_REASON as mentioned in the official documentation).
Still, it didn't work by just changing the environment variable name, Finally, I had to refactor addTransactionRevertReason to add.transaction.revert.reason for it to work.

I have tested it on my local Ganache network and on the Quorum node. It was working like a charm.

Note: You have to make sure that you add this line of code.
web3.eth.handleRevert = true; before submitting any transaction to the ledger, for this feature to work.