EVM rpc method estimateFee should include storage fee

[marc-aurele-besner]

EVM rpc method estimateFee should include storage fee

Currently, the estimateFee method on EVM domain only takes into account the gas limit * gas price of EVM, in our case we also have the storage fee at the substrate level that gets charged as a fee, relative to the transaction call data size.

This can easily create issues for any transaction and wallet extension that relies on estimateFee and especially for transactions including sizable call data.

We should include the storage fee estimation in the estimateFee calculation.

[vedhavyas]

cc: @NingLin-P