make role serializable (#1336)

Author: Rwolfe-Nava

common/src/main/java/gov/cms/ab2d/common/model/Role.java

@@ -5,6 +5,8 @@
 import lombok.Setter;
 import org.hibernate.annotations.NaturalId;
 
+import java.io.Serializable;
+
 import javax.persistence.Column;
 import javax.persistence.Entity;
 import javax.persistence.GeneratedValue;
@@ -14,7 +16,7 @@
 @Getter
 @Setter
 @EqualsAndHashCode(onlyExplicitlyIncluded = true, callSuper = false)
-public class Role extends TimestampBase {
+public class Role extends TimestampBase implements Serializable {
 
     public static final String SPONSOR_ROLE = "SPONSOR";
     public static final String ADMIN_ROLE = "ADMIN";