Adding refresh token

src/main/java/eu/dnetlib/openaire/usermanagement/RefreshToken.java

@@ -0,0 +1,58 @@
+package eu.dnetlib.openaire.usermanagement;
+
+public class RefreshToken {
+    private String value;
+    private int id;
+    private String[] scopes;
+    private String clientId;
+    private String userId;
+    private String expliration;
+
+    public String getValue() {
+        return value;
+    }
+
+    public void setValue(String value) {
+        this.value = value;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public String[] getScopes() {
+        return scopes;
+    }
+
+    public void setScopes(String[] scopes) {
+        this.scopes = scopes;
+    }
+
+    public String getClientId() {
+        return clientId;
+    }
+
+    public void setClientId(String clientId) {
+        this.clientId = clientId;
+    }
+
+    public String getUserId() {
+        return userId;
+    }
+
+    public void setUserId(String userId) {
+        this.userId = userId;
+    }
+
+    public String getExpliration() {
+        return expliration;
+    }
+
+    public void setExpliration(String expliration) {
+        this.expliration = expliration;
+    }
+}