RFR: 8285534: Update the 3D lighting test sample [v3]

[Nir Lisker]

> Update the the test utility. Includes:
> * Refactoring since there is no more need the split pre- and post-attenuation and light types.
> * Added customizable material to the `Boxes` to test the interaction between lights and materials..
> * Light colors can now be changed.
> 
> Note that GitHub decided to count the removal of the `AttenLightingSample` and addition of the `Controls` file as renaming. The sample is now run now only through `LightingSample`.

Nir Lisker has updated the pull request incrementally with one additional commit since the last revision:

  Added ambient lights

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Changes:
  - all: https://git.openjdk.java.net/jfx/pull/787/files
  - new: https://git.openjdk.java.net/jfx/pull/787/files/dae9c1d7..cbca5f8f

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jfx&pr=787&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jfx&pr=787&range=01-02

  Stats: 23 lines in 3 files changed: 18 ins; 2 del; 3 mod
  Patch: https://git.openjdk.java.net/jfx/pull/787.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx pull/787/head:pull/787

PR: https://git.openjdk.java.net/jfx/pull/787