RFR: 8289255: update Eclipse .classpath and other configuration files [v7]

[Nir Lisker]

On Wed, 6 Jul 2022 21:38:36 GMT, Andy Goryachev <duke at openjdk.org> wrote:

>> summary of changes:
>> - fixed .classpath files
>> - set UTF-8 encoding in the eclipse project config files
>
> Andy Goryachev has updated the pull request incrementally with one additional commit since the last revision:
> 
>   8289255: removed 3DViewer test folders from .classpath

Ah, that explains it. I use Buildship which adds the gradle nature. I don't know how eclipse handles projects with no nature, I will have to look at that. It also means that there are going to be conflicts between those who use Buildship and those who don't.

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PR: https://git.openjdk.org/jfx/pull/804