SPDX-License-Identifier: Apache-2.0

[jodygarnett]

Update headers with SPDX-License-Identifier: Apache-2.0

/*
 * Copyright (c) {date} {owner}[ and others]
 * 
 * This program and the accompanying materials are made available under the
 * terms of the Apache License, Version 2.0 which is available at
 * https://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.
 * 
 * SPDX-License-Identifier: Apache-2.0
 */