VE-1735: Added tracking (kibana) in VisualEditor<->Parsoid touchpoint

This change will allow us to know what's the hit/miss ratio for VisualEditor.

https://wikia-inc.atlassian.net/browse/VE-1735
Merge pull request #5766 from Wikia/VE-1735

VE-1735: Added tracking (kibana) in VisualEditor<->Parsoid touchpoint