RFR: 8282507: Add LICENSE file for hsdis

[Man Cao]

On Tue, 1 Mar 2022 20:18:11 GMT, Man Cao <manc at openjdk.org> wrote:

> Hi all,
> 
> Could anyone help review the addition of LICENSE file to hsdis directory?
> 
> -Man

The consistency is to have the license information in its own file, like other 3rd party code in OpenJDK. There two ways:
- Add a LICENSE file or a similar text file. There is src/java.desktop/share/native/libsplashscreen/libpng/LICENSE and make/data/cldr/unicode-license.txt.
- Add markdown files in share/legal subdirectory. Many examples exist such as src/java.xml/share/legal/. This approach seems mainly used for source code in Java.

Do you think it is better to follow the "share/legal" approach such as adding a file src/utils/hsdis/share/legal/hsdis.md ?

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PR: https://git.openjdk.java.net/jdk/pull/7649