[OpenJDK 2D-Dev] [9] Review request for 8163854 Add ToolkitImage.getImage() method which loads an image with schema variant

[Alexander Scherbatiy]

Hello,
Could you review the fix:
  bug: https://bugs.openjdk.java.net/browse/JDK-8163854
  webrev: http://cr.openjdk.java.net/~alexsch/8163854/webrev.00

  The public API which allows to load an image with resolution variants 
based on the provided media resolution naming scheme is added:
  - Toolkit.MediaResolutionNamingScheme class
  - Toolkit.getImageUsingNamingSchemes(String fileName, 
MediaResolutionNamingScheme... namingSchemes)

  A simple example for images which use naming scheme @150pct for scale 
1.5 and @2x for scale 2 is:
    image_name.ext
    image_n...@150pct.ext
    image_n...@2x.ext

    Toolkit toolkit = Toolkit.getDefaultToolkit();
    Image image = toolkit.getImageUsingNamingSchemes(fileName,
            new Toolkit.MediaResolutionNamingScheme(“@150pct”, 1.5f),
            new Toolkit.MediaResolutionNamingScheme(“@2x", 2f)
    );

  Thanks,
  Alexandr.