Fixes:
- [core] Script for fixing drill properties
Enterprise Fixes:
- [drill] Update custom properties only on session end/begin and duration. (Do not process on user_details )
- [drill] Fixed query for generating snapshot to do not error on unexpected object values
- [drill] Fixed custom property updating on incoming data for cases when property update is done with special operations like $push, $addToSet
- [drill] Sanitize keys in bulk writing process