Standardize the params of storage instructions

[clearloop]

Describe the feature

There are two instructions for storage operations in EVM

opcode	instruction	input	output
0x54	sload	key	value
0x55	sstore	key, value

both key and value should be 32-byte, but in the current implementation, we are using i64 for the them, which will be compiled to i64 directly in WASM

not using [u8; 32] or [u64; 4] even U256 in the interfaces for now in library zink is because it is hard to be passed to WASM directly at the moment xdd WASM only has number types i32, i64, f32, f64, an array type could increase the complexity of the implementation #110

Solution

No response