Add compliant and noncompliant examples of java/unrestricted-file-upload@v1.0

Author: karmakri

src/java/detectors/unrestricted_file_upload/UnrestrictedFileUpload.java

@@ -13,6 +13,7 @@
 import org.springframework.util.StringUtils;
 import javax.servlet.ServletException;
 import javax.servlet.http.Part;
+import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.StandardCopyOption;