RFR: 8289255: update Eclipse .classpath and other configuration files

[Nir Lisker]

On Mon, 27 Jun 2022 23:47:21 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

>> summary of changes:
>> - fixed .classpath files
>> - set UTF-8 encoding in the eclipse project config files
>> 
>> the list of eclipse projects that do compile in Eclipse as a result of this PR are:
>> - base
>> - controls
>> - fxml
>> - graphics
>> - jfx
>> - media
>> - swing
>> - swt
>> - systemTests (can be dropped in favor ot tests
>> - tests
>> - web
>> 
>> Not supported (should be removed from workspace or simply closed):
>> - apps
>> - apps/*
>> - buildSrc
>
> Once the OCA status has been verified, the review can proceed formally.
> 
> @nlisker Would you be able to review these changes? I'm not an Eclipse user.
> 
> @kleopatra your input would be helpful, too, if you are willing to take a look.

@kevinrushforth 2 questions that are relevant to the future work on the Eclipse files:
1. The jfx gradle build treats `tests/system` as a project but not its parent `test`. The cleanup talked about wiring up `manual` and `performance` to the build. Do you have an idea when the work on this will start?
2. The cleanup also talked about moving `apps/toys` and `apps/tests` to `tests/manual`. This means that `apps/samples` is the only folder to remain in `apps` (`apps/performance` was removed already). Is there a point to keeping the hierarchy? Maybe just `apps` or just `samples` will be sufficient in this case.

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