ContractAddress, ClassHash and EthAddress decoding

[notV4l]

Actually this types are handle as common numeric types :

starknet-hardhat-plugin/src/adapt.ts

Lines 8 to 20 in afc83b3

	const COMMON_NUMERIC_TYPES = [
	"felt",
	"core::felt252",
	"core::integer::u8",
	"core::integer::u16",
	"core::integer::u32",
	"core::integer::u64",
	"core::integer::u128",
	"core::starknet::contract_address::ContractAddress",
	"core::starknet::class_hash::ClassHash",
	"core::starknet::eth_address::EthAddress"
	];

It could be converted to hex representation
ie :
3407481119780572850671182801001023516830125398818876583940565901076194792664 would decode to 0x78890e347461d95a8eacddaeb35b577f4ef29a6fbf825326d8d97022e2a14d8

[FabijanC]

Would make sense for ContractAddress, ClassHash and EthAddress. But this would be a breaking change.