fix missing license

Signed-off-by: Scott M Stark <starksm64@gmail.com>

api/src/main/java/org/eclipse/microprofile/jwt/JWTClaim.java

@@ -1,6 +1,24 @@
+/*
+ * Copyright (c) 2016-2017 Contributors to the Eclipse Foundation
+ *
+ *  See the NOTICE file(s) distributed with this work for additional
+ *  information regarding copyright ownership.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  You may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 package org.eclipse.microprofile.jwt;
 
-import javax.enterprise.util.Nonbinding;
 import javax.inject.Qualifier;
 import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;