RFR: 8320359: ImageView: add styleable fitWidth, fitHeight, preserveRatio, smooth properties [v3]

[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:

  save 8 bytes

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

Changes:
  - all: https://git.openjdk.org/jfx/pull/1293/files
  - new: https://git.openjdk.org/jfx/pull/1293/files/a6b772c4..f735b8bb

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jfx&pr=1293&range=02
 - incr: https://webrevs.openjdk.org/?repo=jfx&pr=1293&range=01-02

  Stats: 23 lines in 1 file changed: 21 ins; 1 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