MultiOnRamp fee token configs

[RayXpub]

Motivation

Implements per destination chain fee token configs in the EVM2EVMMultiOnRamp, which allows the OnRamp to support more than one destination chain configuration.

Solution

Removes the FeeTokenConfig struct by:

• Outsourcing destination chain specific fields to the DestChainConfig struct, namely networkFeeUSDCents & gasMultiplierWeiPerEth which are now shared across all fee tokens
• Renaming premiumMultiplierWeiPerEth to feeTokenConfig which now becomes per fee token vs per destination chain per fee token
• Replacing the isEnabled flag by feeTokenConfig > 0

Out of scope for this PR:

• Full coverage
• Token transfer fee configs to be per destination chain

[github-actions[bot]]

Go solidity wrappers are out-of-date, regenerate them via the make wrappers-all command

[github-actions[bot]]

LCOV of commit f2f482b during Solidity Foundry #4795

Summary coverage rate:
  lines......: 98.7% (1262 of 1279 lines)
  functions..: 96.4% (268 of 278 functions)
  branches...: 92.2% (535 of 580 branches)

Files changed coverage rate: n/a