[ANALYZER-1545] - Ability to show data labels on charts and visualizations.
* Adapting to new CCC option ValuesOverflow
* Removed duplicate call to "configureColumnLabelsAlignmentOptions" (already being called by the base class).
* Removed use of recently added CCC option "subValuesVisible", taking advantage of the new feature, and opting by some local extension code.
* Removed unused function "configureLabelsAlignmentOptions".
NOTE: this commit depends on the commits in https://github.com/webdetails/ccc/pull/53