add notice

Author: mjain-jump

NOTICE

@@ -545,3 +545,24 @@ https://github.com/solana-program/token/tree/program%40v8.0.0/p-token
                         http://www.apache.org/licenses/
 
 =======================================================================
+
+The flatbuffers generated code in src/flamenco/runtime/tests/flatbuffers/
+is generated by flatcc.
+
+https://github.com/dvidelabs/flatcc/
+
+Copyright 2015 Mikkel F. Jørgensen, dvide.com
+
+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.
+
+=======================================================================