adding to sdk

Author: ehenry27

src/client.ts

@@ -33,6 +33,7 @@ import RegisteredEmailAddressService from "./services/registered-email-address/s
 import { ClientType } from "./enums";
 import { PostcodeLookupService } from "./services/postcode-lookup";
 import PscVerificationService from "./services/psc-verification-link/service";
+import PscExtensionsService from "./services/psc-extensions-link/service";
 import { AccountsFilingService } from "./services/accounts-filing";
 import PscService from "./services/psc/service";
 import { LimitedPartnershipsService } from "./services/limited-partnerships"
@@ -75,6 +76,7 @@ export default class ApiClient {
     public readonly acsp: AcspService;
     public readonly postCodeLookup: PostcodeLookupService;
     public readonly pscVerificationService: PscVerificationService;
+    public readonly pscExtensionsService: PscExtensionsService;
     public readonly accountsFilingService: AccountsFilingService;
     public readonly pscService: PscService;
     public readonly limitedPartnershipsService: LimitedPartnershipsService;
@@ -115,6 +117,7 @@ export default class ApiClient {
         this.transaction = new TransactionService(apiClient);
         this.registeredEmailAddressService = new RegisteredEmailAddressService(apiClient);
         this.postCodeLookup = new PostcodeLookupService(apiClient);
+        this.pscExtensionsService = new PscExtensionsService(apiClient);
         this.pscVerificationService = new PscVerificationService(apiClient);
         this.accountsFilingService = new AccountsFilingService(apiClient);
         this.pscService = new PscService(apiClient);