RFR: 8242892: SpinnerValueFactory has an implicit no-arg constructor

[Ajit Ghaisas]

Issue : https://bugs.openjdk.java.net/browse/JDK-8242892

Fix : Added a constructor to SpinnerValueFactory class with minimal description.

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Commit messages:
 - added constructor

Changes: https://git.openjdk.java.net/jfx/pull/250/files
 Webrev: https://webrevs.openjdk.java.net/jfx/250/webrev.00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8242892
  Stats: 5 lines in 1 file changed: 5 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jfx/pull/250.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx pull/250/head:pull/250

PR: https://git.openjdk.java.net/jfx/pull/250