[Rev 04] RFR: 8217472: Add attenuation for PointLight

[Nir Lisker]

> CSR: https://bugs.openjdk.java.net/browse/JDK-8218264

Nir Lisker has updated the pull request with a new target base due to a merge or a rebase. The pull request now
contains 11 commits:

 - Merge branch 'master' into 8217472_Add_attenuation_for_PointLight
 - Attenuation and range changed internally to floats from doubles
 - Fixed shader compilation errors for 2 and 3 lights in es2
 - Addressing review comments
 - Fixed whitespaces
 - Correction for indexes
 - Docs and year update
 - Merge remote-tracking branch 'nlisker/8217472_Add_attenuation_for_PointLight' into
   8217472_Add_attenuation_for_PointLight
 - GL pipeline
 - Separate range from attenuation
 - ... and 1 more: https://git.openjdk.java.net/jfx/compare/4ec163df...2e1223ed

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Changes: https://git.openjdk.java.net/jfx/pull/43/files
 Webrev: https://webrevs.openjdk.java.net/jfx/43/webrev.04
  Stats: 501 lines in 27 files changed: 391 ins; 13 del; 97 mod
  Patch: https://git.openjdk.java.net/jfx/pull/43.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx pull/43/head:pull/43

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