Merge #62: test: refresh BIP-352 test vectors to v1.1.1

bcac039 test: refresh BIP-352 test vectors to v1.1.1 (macgyver13)

Pull request description:

  ### Description

  Refresh BIP-352 test vectors to match version [1.1.1](bitcoin/bips#2142)
  - Add tests 26 & 27 to send.rs and receive.rs.
  - Modify serialization to parse the updated sending.given.recipients map and maintain receiving.expected.addresses string format.

  ### Notes to the reviewers

  cargo t --test functional_tests bip352_vectors

  All tests pass - 3 are ignored for this PR
  ```
  test bip352_vectors::send::input_keys_intermediate_sum_is_zero_but_final_sum_is_non_zero ... ignored, currently fails due to intermediate sum being zero
  test bip352_vectors::send::maximum_per_group_recipient_limit_k_max_is_exceeded ... ignored, limit k-max not implemented
  test bip352_vectors::receive::maximum_per_group_recipient_limit_k_max_is_exceeded ... ignored, limit k-max not implemented
  ```

  Resolving ignored tests will be handled in future PRs.

  ### Checklists

  #### All Submissions:

  * [x] I've signed all my commits
  * [x] I followed the [conventional commit guidelines](https://www.conventionalcommits.org/en/v1.0.0/)
  * [x] I ran `just p` (fmt, clippy and test) before committing

ACKs for top commit:
  nymius:
    ACK bcac039

Tree-SHA512: ae04dfaec03e833605d2deb7262b168c0892484432f7ebc8263e3db46cdfd54e5d24b34da65de9fa69bc2c5f94d8de901d6dbba3271f8ef89d422ca25baff40c

Author: nymius

silentpayments/tests/functional_tests/bip352_vectors/receive.rs

@@ -267,3 +267,14 @@ fn no_valid_inputs_sender_generates_no_outputs() {
 fn input_keys_sum_up_to_zero_point_at_infinity_sending_fails_receiver_skips_tx() {
     check_cases(25);
 }
+
+#[test]
+fn input_keys_intermediate_sum_is_zero_but_final_sum_is_non_zero() {
+    check_cases(26);
+}
+
+#[test]
+#[ignore = "limit k-max not implemented"]
+fn maximum_per_group_recipient_limit_k_max_is_exceeded() {
+    check_cases(27);
+}

silentpayments/tests/functional_tests/bip352_vectors/send.rs

@@ -175,3 +175,15 @@ fn no_valid_inputs_sender_generates_no_outputs() {
 fn input_keys_sum_up_to_zero_point_at_infinity_sending_fails_receiver_skips_tx() {
     check_cases(25);
 }
+
+#[test]
+#[ignore = "currently fails due to intermediate sum being zero"]
+fn input_keys_intermediate_sum_is_zero_but_final_sum_is_non_zero() {
+    check_cases(26);
+}
+
+#[test]
+#[ignore = "limit k-max not implemented"]
+fn maximum_per_group_recipient_limit_k_max_is_exceeded() {
+    check_cases(27);
+}