Implemented AsRef<[u8]> and TryFrom<&[u8]> for DA compression types

[xgreenx]

Implemented AsRef<[u8]> and TryFrom<&[u8]> for DA compression types: ScriptCode, PredicateCode, RegistryKey. It allows to use Raw codec in the fuel-core

Before requesting review

• I have reviewed the code myself

[netrome]

LGTM. Just one nit suggestion.

[netrome]

Nit: How about using a dedicated error type here?

Suggested change

	impl TryFrom<&[u8]> for RegistryKey {
	type Error = &'static str;
	fn try_from(value: &[u8]) -> Result<Self, Self::Error> {
	if value.len() != Self::SIZE {
	return Err("RegistryKey must be 3 bytes long");
	}
	let mut bytes = [0u8; 3];
	bytes.copy_from_slice(value);
	Ok(Self(bytes))
	}
	}
	impl TryFrom<&[u8]> for RegistryKey {
	type Error = InvalidRegistryKeySize;
	fn try_from(value: &[u8]) -> Result<Self, Self::Error> {
	if value.len() != Self::SIZE {
	return Err(InvalidRegistryKeySize);
	}
	let mut bytes = [0u8; 3];
	bytes.copy_from_slice(value);
	Ok(Self(bytes))
	}
	}
	#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, derive_more::Display, derive_more::Error)]
	#[display("RegistryKey must be 3 bytes long")]
	struct InvalidRegistryKeySize;