[EPIC] [HIP 1084] EthereumTransaction Zero HAPI Cost On Success

[stoyanov-st]

Update network logic to not charge successful EthereumTransaction submissions fee, but only charge the regular HAPI fee for badly formed transactions. This way if a user submits a valid ETH TX the relay operator will pay $0 and the user will be charged the appropriate gas fees.

Tasks

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1. Research the way that the relayer is charged for Transactions #16433
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2. Implement the change for zero charge to the relayer #16482
   Hedera Smart Contract Service +1
   
3. ETH Transaction Zero HAPI fees on success: Add test coverage #16483
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4. Merge HIP
5. Enable flag for different envs
6. Refactor ContextTransactionProcessor

[stoyanov-st]

HIP PR for issue
hashgraph/hedera-improvement-proposal#1084

[stoyanov-st]

Remaining planned refactoring when HIP is accepted + testing when previewnet enabled

[Nana-EC]

HIP was merged. Awaiting council consideration