Update license headers for java, js, python

[simitt]

Updating the Makefile to also add the license headers to the test examples written in python, java and js.

• python: cannot be automated yet, due to Support non-go source files specifics go-licenser#43
• java: automated
• js: adding the license header cannot be automated as the formatting would be changed, but the check can be automated and is done

[AlexanderWert]

you wrote in the description:

js: adding the license header cannot be automated as the formatting would be changed, but the check can be automated and is done

Isn't this line adding / updating the license headers for .js files?

[simitt]

Removed that line now. It changes the formatting/intentation on the .js files. I actually updated the headers for js files manually and then run the control script via the make check-licenses.

[ghost]

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• Start Time: 2022-06-03T13:00:38.968+0000

• Duration: 7 min 12 sec

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Total	200

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