update individual file licenses and compress corpus directory

Author: dillonfranke

CoreAudioFuzz/Makefile

@@ -1,4 +1,16 @@
-# Makefile to compile Objective-C and C/C++ source files with debug symbols
+# Copyright 2025 Google LLC
+
+# 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
+
+#     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.
 
 # Compilers
 CC = clang