Add NOTICE

Author: anthonyharrison

NOTICE

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+SPDX-License-Identifier: Apache-2.0
+
+https://aph10.com and https://github.com/aph10/BIDS
+
+The BIDS software is licensed under the Apache License version 2.0.
+
+Data generated with BIDS is provided as-is without warranties.
+
+You may not use this software except in compliance with the License.
+You may obtain a copy of the License at: http://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.
+
+Data Generated with BIDS is provided on an "AS IS" BASIS, WITHOUT WARRANTIES
+OR CONDITIONS OF ANY KIND, either express or implied. No content created from
+BIDS should be considered or used as legal advice. Consult an appropriately qualified
+lawyer for any legal advice.
+
+BIDS is a free software tool from APH10 Limited and others.
+
+Visit https://github.com/aph10/BIDS for support and download.