1) Fixed the TestNamedColorsIntegration.py
2) GetColorNames(), GetSynonyms() now returm a formatted vtkStdString.
3) Examples for how to parse the formatted stkStdStrings returned by
   GetColorNames() and SetSynonyms() are provided in TestNamedColors.cxx
   and TestNamedColorsIntegration.py (commented out in this case).
4) Test coverage has been improved.


Change-Id: Iaff1a126d2e0e096daf218bcf3478ef5b0984da5
Signed-off-by: Andrew Maclean <andrew.amaclean@gmail.com>