Add generate masterpass account token client adapter

src/main/java/io/craftgate/adapter/MasterpassPaymentAdapter.java

@@ -23,6 +23,12 @@ public MasterpassPaymentTokenGenerateResponse generateMasterpassPaymentToken(Mas
                 masterpassPaymentTokenGenerateRequest, MasterpassPaymentTokenGenerateResponse.class);
     }
 
+    public MasterpassAccountTokenGenerateResponse generateMasterpassAccountToken(MasterpassAccountTokenGenerateRequest masterpassAccountTokenGenerateRequest) {
+        String path = "/payment/v2/masterpass-accounts/generate-token";
+        return HttpClient.post(requestOptions.getBaseUrl() + path, createHeaders(masterpassAccountTokenGenerateRequest, path, requestOptions),
+                masterpassAccountTokenGenerateRequest, MasterpassAccountTokenGenerateResponse.class);
+    }
+
     public PaymentResponse completeMasterpassPayment(MasterpassPaymentCompleteRequest masterpassPaymentCompleteRequest) {
         String path = "/payment/v2/masterpass-payments/complete";
         return HttpClient.post(requestOptions.getBaseUrl() + path, createHeaders(masterpassPaymentCompleteRequest, path, requestOptions),

src/main/java/io/craftgate/request/MasterpassAccountTokenGenerateRequest.java

@@ -0,0 +1,14 @@
+package io.craftgate.request;
+
+import lombok.Data;
+import lombok.experimental.SuperBuilder;
+import lombok.EqualsAndHashCode;
+import io.craftgate.request.common.BaseRequest;
+
+@Data
+@SuperBuilder
+@EqualsAndHashCode(callSuper = false)
+public class MasterpassAccountTokenGenerateRequest extends BaseRequest {
+    private String msisdn;
+    private String userId;
+}

src/main/java/io/craftgate/response/MasterpassAccountTokenGenerateResponse.java

@@ -0,0 +1,9 @@
+package io.craftgate.response;
+
+import lombok.Data;
+
+@Data
+public class MasterpassAccountTokenGenerateResponse {
+
+    private String token;
+}