feat: add support for XLS-40d + add script to auto-generate models from rippled code (#2491)

Add support for XLS-40 and adds a script to automatically
generate transaction models from rippled source code.

### Context of Change

https://github.com/XRPLF/XRPL-Standards/pull/136
https://github.com/XRPLF/rippled/pull/4636

packages/xrpl/test/integration/transactions/didDelete.test.ts

@@ -0,0 +1,70 @@
+import { assert } from 'chai'
+
+import { DIDSet, DIDDelete } from '../../../src'
+import serverUrl from '../serverUrl'
+import {
+  setupClient,
+  teardownClient,
+  type XrplIntegrationTestContext,
+} from '../setup'
+import { testTransaction } from '../utils'
+
+// how long before each test case times out
+const TIMEOUT = 20000
+
+describe('DIDDelete', function () {
+  let testContext: XrplIntegrationTestContext
+
+  beforeEach(async () => {
+    testContext = await setupClient(serverUrl)
+  })
+  afterEach(async () => teardownClient(testContext))
+
+  it(
+    'base',
+    async () => {
+      const setupTx: DIDSet = {
+        TransactionType: 'DIDSet',
+        Account: testContext.wallet.address,
+        Data: '617474657374',
+        DIDDocument: '646F63',
+        URI: '6469645F6578616D706C65',
+      }
+
+      await testTransaction(testContext.client, setupTx, testContext.wallet)
+
+      // double check the DID was properly created
+      const initialAccountOffersResponse = await testContext.client.request({
+        command: 'account_objects',
+        account: testContext.wallet.address,
+        type: 'did',
+      })
+      assert.lengthOf(
+        initialAccountOffersResponse.result.account_objects,
+        1,
+        'Should be exactly one DID on the ledger after a DIDSet transaction',
+      )
+
+      // actual test - cancel the check
+      const tx: DIDDelete = {
+        TransactionType: 'DIDDelete',
+        Account: testContext.wallet.address,
+      }
+
+      await testTransaction(testContext.client, tx, testContext.wallet)
+
+      // confirm that the DID no longer exists
+      const accountOffersResponse = await testContext.client.request({
+        command: 'account_objects',
+        account: testContext.wallet.address,
+        type: 'did',
+      })
+      assert.lengthOf(
+        accountOffersResponse.result.account_objects,
+        0,
+        'Should be no DID on the ledger after a DIDDelete transaction',
+      )
+    },
+    TIMEOUT,
+  )
+})

packages/xrpl/test/integration/transactions/didSet.test.ts

@@ -0,0 +1,50 @@
+import { assert } from 'chai'
+
+import { DIDSet } from '../../../src'
+import serverUrl from '../serverUrl'
+import {
+  setupClient,
+  teardownClient,
+  type XrplIntegrationTestContext,
+} from '../setup'
+import { testTransaction } from '../utils'
+
+// how long before each test case times out
+const TIMEOUT = 20000
+
+describe('DIDSet', function () {
+  let testContext: XrplIntegrationTestContext
+
+  beforeEach(async () => {
+    testContext = await setupClient(serverUrl)
+  })
+  afterEach(async () => teardownClient(testContext))
+
+  it(
+    'base',
+    async () => {
+      const tx: DIDSet = {
+        TransactionType: 'DIDSet',
+        Account: testContext.wallet.classicAddress,
+        Data: '617474657374',
+        DIDDocument: '646F63',
+        URI: '6469645F6578616D706C65',
+      }
+
+      await testTransaction(testContext.client, tx, testContext.wallet)
+
+      // confirm that the DID was actually created
+      const accountOffersResponse = await testContext.client.request({
+        command: 'account_objects',
+        account: testContext.wallet.classicAddress,
+        type: 'did',
+      })
+      assert.lengthOf(
+        accountOffersResponse.result.account_objects,
+        1,
+        'Should be exactly one DID on the ledger after a DIDSet transaction',
+      )
+    },
+    TIMEOUT,
+  )
+})