feat(rpc): add state overrides to estimate gas, fix error msg

[dancoombs]

Closes #525
Closes #530

Proposed Changes

• Add state overrides to eth_estimateUserOperationGas
• Move revert bytes to revert_bytes in the data field of the eth_estimateUserOperationGas error response

TODO

• Test state overrides using a USDC paymaster
• Test revert bytes using a contract that returns a non-string error

[codecov]

Codecov Report

Attention: 35 lines in your changes are missing coverage. Please review.

Comparison is base (4f2ffe8) 55.17% compared to head (d8874fc) 55.21%.

Additional details and impacted files

Files	Coverage Δ
crates/provider/src/traits/provider.rs	33.33% <ø> (ø)
crates/rpc/src/eth/mod.rs	0.00% <ø> (ø)
crates/sim/src/estimation/types.rs	61.38% <ø> (ø)
crates/sim/src/simulation/simulation.rs	76.19% <100.00%> (ø)
bin/rundler/src/cli/mod.rs	0.00% <0.00%> (ø)
crates/rpc/src/eth/server.rs	0.00% <0.00%> (ø)
crates/sim/src/utils.rs	91.17% <90.00%> (+0.43%)	⬆️
crates/rpc/src/eth/error.rs	0.00% <0.00%> (ø)
crates/sim/src/estimation/estimation.rs	90.72% <93.47%> (-0.15%)	⬇️
crates/rpc/src/eth/api.rs	65.13% <10.00%> (-0.54%)	⬇️
... and 1 more

Flag	Coverage Δ
unit-tests	55.21% <75.17%> (+0.03%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
rundler binary	0.00% <0.00%> (ø)
builder	50.09% <ø> (ø)
dev	0.00% <ø> (ø)
pool	58.73% <ø> (ø)
provider	0.93% <0.00%> (-0.03%)	⬇️
rpc	38.23% <6.66%> (-0.27%)	⬇️
sim	83.26% <92.92%> (+0.06%)	⬆️
tasks	∅ <ø> (∅)
types	91.51% <ø> (ø)
utils	15.12% <ø> (ø)

[dancoombs]

Tested revert bytes by calling https://github.com/eth-infinitism/account-abstraction/blob/187613b0172c3a21cf3496e12cdfa24af04fb510/contracts/core/EntryPoint.sol#L356 on the entry point, the revert error is correctly formatted.

body: '{"jsonrpc":"2.0","error":{"code":-32521,"message":"execution reverted","data":{"revertData":"0x6ca7b8060000000000000000000000007e7df6dc443993a2c6fb67edcfd41522a6ffc49a"}},"id":43}',

[0xfourzerofour]

Looks good, just a nit math comment