[Rev 02] RFR: 8207957: TableSkinUtils should not contain actual code implementation

[Hadzic Samir]

The pull request has been updated with additional changes.

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

Added commits:
 - 49abc7c7: Add space and update Javadoc for tableColumnHeader and NestedTableColumnHeader

Changes:
  - all: https://git.openjdk.java.net/jfx/pull/6/files
  - new: https://git.openjdk.java.net/jfx/pull/6/files/e846e51c..49abc7c7

Webrevs:
 - full: https://webrevs.openjdk.java.net/jfx/6/webrev.02
 - incr: https://webrevs.openjdk.java.net/jfx/6/webrev.01-02

  Issue: https://bugs.openjdk.java.net/browse/JDK-8207957
  Stats: 9 lines in 2 files changed: 1 ins; 0 del; 8 mod
  Patch: https://git.openjdk.java.net/jfx/pull/6.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx pull/6/head:pull/6

PR: https://git.openjdk.java.net/jfx/pull/6