[Rev 04] RFR: 8207957: TableSkinUtils should not contain actual code implementation

[Hadzic Samir]

The pull request has been updated with additional changes.

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Added commits:
 - 2b088993: Add @implSpec tag for javadoc of TableColumnHeader

Changes:
  - all: https://git.openjdk.java.net/jfx/pull/6/files
  - new: https://git.openjdk.java.net/jfx/pull/6/files/1f1f7c44..2b088993

Webrevs:
 - full: https://webrevs.openjdk.java.net/jfx/6/webrev.04
 - incr: https://webrevs.openjdk.java.net/jfx/6/webrev.03-04

  Issue: https://bugs.openjdk.java.net/browse/JDK-8207957
  Stats: 4 lines in 1 file changed: 1 ins; 0 del; 3 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