RFR: 8320359: ImageView: add styleable fitWidth, fitHeight, preserveRatio, smooth properties [v2]

[Andy Goryachev]

> Adding missing styleable properties to ImageView:
> 
> 
> -fx-preserve-ratio
> -fx-smooth
> -fx-fit-width
> -fx-fit-height
> 
> 
> Updated CSS Reference.

Andy Goryachev has updated the pull request incrementally with one additional commit since the last revision:

  review comments

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Changes:
  - all: https://git.openjdk.org/jfx/pull/1293/files
  - new: https://git.openjdk.org/jfx/pull/1293/files/49e5bc68..a6b772c4

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jfx&pr=1293&range=01
 - incr: https://webrevs.openjdk.org/?repo=jfx&pr=1293&range=00-01

  Stats: 5 lines in 1 file changed: 4 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jfx/pull/1293.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1293/head:pull/1293

PR: https://git.openjdk.org/jfx/pull/1293