v2.0.1-beta - Fix Ethereum Fee Comparison

This release fixes a panic when fetching a block with Ethereum transactions that run out of gas, are unauthorized, or have insufficient funds. An incorrect comparison between ukava and akava was made in these cases, causing an invalid denomination panic.

This release updates the fee logic to ignore the fee status for Ethereum transactions since this op type is unused in this case, and only transfer op types are used.

This pre-release has been tested to balance track on a small range of blocks and will be upgraded to a production release once balance tracking as been verified on all kava-mainnet blocks.