Address future/todo comments that are blocked or need further investigation

[lukelee-sl]

Address the following future/todo messages

app/service/contract/impl/test/handlers/ContractCreateHandlerTest.java	134	// FUTURE: uncomment this after JKey removal	unknown what this is about
app/service/contract/impl/exec/gas/CustomGasCalculator.java	98	* FUTURE, Gas for system contract method calls needs to be a) determined by measurement of	Blocked until after fee calculation revamp
app/service/contract/impl/exec/TransactionProcessor.java	218	// (FUTURE) Once fee charging is more consumable in the HandleContext, we will also want	Blocked until HandleContext changes
app/service/contract/impl/exec/systemcontracts/has/isauthorizedraw/IsAuthorizedRawCall.java	200	// FUTURE, Get the Cryptography engine from the services app via the context (needs to be invented)	Blocked until HIP 632
app/service/contract/impl/exec/systemcontracts/has/isauthorizedraw/IsAuthorizedRawCall.java	250	// FUTURE, Determine if in fact input v ever has a EIP-155 encoded chain id ...	Blocked until HIP 632
app/service/contract/impl/exec/utils/ActionStack.java	348	// (FUTURE) Use builder for simplicity when PBJ lets us set the oneof recipient to UNSET;	blocked until https://github.com/hashgraph/pbj/issues/160
app/service/contract/impl/exec/scope/HandleHederaOperations.java	230	// (FUTURE) Needed before enabling contract expiry	blocked until rent
app/service/contract/impl/infra/RentCalculator.java	58	// TODO - fix this before expiry and rent are enabled	blocked until rent
app/service/contract/impl/state/DispatchingEvmFrameState.java	83	* TODO - get a little further to clarify DI strategy, then bring back a code cache.	investigate
app/service/contract/impl/exec/systemcontracts/FullResult.java	70	// Future change reason.protoName() with reason.protoOrdinal()	Investigate
app/service/contract/impl/exec/processors/CustomContractCreationProcessor.java	121	// TODO - check if a code rule failed before proceeding	investigate
app/service/contract/impl/exec/processors/CustomContractCreationProcessor.java	143	// TODO - should we revert child records here?	investigate
app/service/contract/impl/exec/failure/CustomExceptionalHaltReason.java	59	// FUTURE: refactor in the future to be more readable when we start looking for cleanups	cannot be address until grade upgrade per https://github.com/autonomousapps/dependency-analysis-gradle-plugin/issues/1150
app/service/contract/impl/exec/scope/QueryHederaOperations.java	135	// TODO - implement correctly