feat(gasPriceOracle): Allow caller to pass in base fee multiplier

[nicholaspai]

Motivation:

We should have quoting API apply its GAS_MARKUP to the base fee rather than the estimated gas units.

Features

• Apply a base fee multiplier to base fees rather than the gas cost estimate. This will provide more accurate gas price estimation to downstream users like the quoting API and the relayer
• Add Linea viem gas price oracle adapter
• Remove any gas price estimation that doesn't go through gasPriceOracle, such as the Linea logic in estimateTotalGasRequiredByUnsignedTransaction
• Add unit tests to CI
• Remove Arbitrum, Ethereum and Polygon viem gas price oracle adapters as the ethers adapter should work just as well
• Refactors gas price oracle getGasPriceEstimate() function and consolidates all optional parameters into a single GasPriceEstimateOptions object which will be easier to maintain

Downstream PR's

• Relayer can submit transactions with more accurate gas prices: PR
• Frontend API quotes gas costs using gas prices: PR

[pxrl]

@gsteenkamp89 Since Dong-Ha is out this week, are you interested to take a look at updating the api to handle this change?

[gsteenkamp89]

@gsteenkamp89 Since Dong-Ha is out this week, are you interested to take a look at updating the api to handle this change?

Yeah I can tackle this 👍

[nicholaspai]

@gsteenkamp89 Since Dong-Ha is out this week, are you interested to take a look at updating the api to handle this change?

Yeah I can tackle this 👍

G this might be relevant: across-protocol/frontend#1339