Add copyright headers #115

Job	Run time
Build on macOS for macos	1m 27s
Build on Ubuntu 22.04 amd64	1m 47s
Build on macOS for iphoneos	1m 45s
Build on Ubuntu 22.04 arm64	2m 33s
Build on macOS for iphonesimulator	1m 27s
Build on Ubuntu 24.04 amd64	2m 14s
Build on Ubuntu 24.04 arm64	2m 56s
Build on Ubuntu 24.10 amd64	1m 53s
Build on Ubuntu 24.10 arm64	2m 59s
	19m 1s

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