[jfx17] RFR: 8212088: Missing copyright notices for property files

[Johan Vos]

On Wed, 28 Jul 2021 17:34:32 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

> This PR adds missing copyright header blocks for several properties files, script files, and textual data files (e.g., fxml, css) that do not have them. Where feasible, all non-trivial textual files in the repo should have a proper copyright header.
> 
> ## Notes to Reviewers
> 
> * This PR is targeted to the `jfx17` branch.
> * There are two commits that can be reviewed separately, if you  prefer. The first covers most of the files, and adds a copyright header with a GPL v2 + classpath license. The second is for the `apps/samples` only, which adds a copyright header with a BSD-style license.

Is there a reason why the samples have a BSD license while the others have GPL + CPE? (not that I'm against BSD, just wondering)

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PR: https://git.openjdk.java.net/jfx/pull/591