RFR: 8217472: Add attenuation for PointLight [v5]

[Nir Lisker]

On Fri, 24 Jul 2020 21:41:04 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

> 1. The API docs look good. If you change the public API to `@since 16` then you can also update the CSR and move it to
> the "Submitted" state.

I moved it to the PROPOSED state.

> 2. I think it would be good to cleanup the performance test and make it part of this PR, maybe in `tests/performance`
> (which currently only has the not-very-useful `VMPerformance` subdir) or `tests/manual`.

I added it under `tests/performance`.

> 3. We need some functional tests, ideally automated ones in `tests/system`

What should this test do? Which example should I follow?

By the way, The `tests` project is broken in Eclipse because several source folders, like `tests\system\src\testapp6`,
define their own `module-info.java`, and it's illegal in Eclipse to have several of these in a project. To have the
tests there compile, the Eclipse files will need to be updated.

-------------

PR: https://git.openjdk.java.net/jfx/pull/43