Fully implement HypERC20

[tkporter]

• Upgrade to newer forc / fuels-rs / fuel-contracts versions (the fuel-contracts commit is pointing to Upgrade to forc 0.38 & fuels-rs 0.41, including new storage API & some quality of life changes fuel-contracts#88)
• Implement HypERC20

Some things to note

• This only implements HypERC20 - not the collateral version or native version yet
• There are some modest TODOs / notes about workarounds with the new storage API
• This allows for different "local" decimals and "remote" decimals, as a workaround to the u64 balance accounting
• Gas is paid for in a separate call because only one token type can be transferred per call
• This only really works for sending tokens to EOAs, and not contracts. See https://hyperlaneworkspace.slack.com/archives/C04DZ2E65U5/p1682556318518589 for conversations around this. Technically you can transfer to an output that is a predicate that will transfer to a contract ID, but this may not be the ideal solution
• The Fuel token standard isn't solidified, but I went off of what is currently in Create a standard abi for fungible tokens. FuelLabs/rfcs#13