Feature show preimage listpayments getpayment

[lukegao209]

No description provided.

[zoedberg]

Thank you!

Requested some small changes. Please also squash into a single signed commit saying add preimage to Payment and then rebase on top of the updated master.

Finally check lint and format with the latest stable rust

[zoedberg]

Suggested change

	example: "1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef"
	example: 89d28bd306aa9bb906fd0ac31092d04c37c919a171b343083167e2a3cdc60578

[zoedberg]

Suggested change

description: Optional custom payment preimage (hex string, 32 bytes)

[zoedberg]

Suggested change

	assert!(
	payment.preimage.is_some(),
	"Payment preimage should be present for successful payment"
	);
	let payment_preimage_hash = hex_str(
	&Sha256::hash(&hex_str_to_vec(&payment.preimage.unwrap()).unwrap()).to_byte_array(),
	);
	assert_eq!(payment_preimage_hash, decoded.payment_hash);

please do this in this entire test, instead of checking that it's some.

you will also need to modify the top of the file like this:

+use bitcoin::hashes::sha256::Hash as Sha256;
+use bitcoin::hashes::Hash;
+
 use crate::routes::{BitcoinNetwork, TransactionType, TransferKind, TransferStatus};
+use crate::utils::hex_str;