Initial completion of scanning of qr code from gmail

src/main/java/com/safeqr/app/gmail/model/EmailMessage.java

@@ -0,0 +1,38 @@
+package com.safeqr.app.gmail.model;
+
+import com.fasterxml.jackson.annotation.JsonInclude;
+import lombok.Data;
+
+import java.util.ArrayList;
+import java.util.List;
+@Data
+public class EmailMessage {
+    private String messageId;
+    private String subject;
+    private String historyId;
+
+    @JsonInclude(JsonInclude.Include.NON_EMPTY)
+    List<QRCodeByContentId> qrCodeByContentId;
+
+    @JsonInclude(JsonInclude.Include.NON_EMPTY)
+    List<QRCodeByURL> qrCodeByURL;
+
+    public EmailMessage(String messageId, String subject, String historyId) {
+        this.messageId = messageId;
+        this.subject = subject;
+        this.historyId = historyId;
+        this.qrCodeByContentId = new ArrayList<>();
+        this.qrCodeByURL = new ArrayList<>();
+    }
+    public void addQRCodeByContentId(QRCodeByContentId qrCode) {
+        this.qrCodeByContentId.add(qrCode);
+    }
+
+    public void addQRCodeByURL(QRCodeByURL qrCode) {
+        this.qrCodeByURL.add(qrCode);
+    }
+
+    public boolean hasQRCodes() {
+        return !qrCodeByContentId.isEmpty() || !qrCodeByURL.isEmpty();
+    }
+}