Mrdatabase

- Added code example of how to do batching of sql commands (10K rows in less than half a sec)
- Added documentation of how to do batching of sql commands
- Added .clone() to record objects (based on copy.deepcopy)
- Experimented with script generation, but performance is too terrible
- Refactored database_connection (now DatabaseConnection) to better distinguish between mutation, query and batch.
- Added ConType enum class (mutation, query, batch)

Release Notes

- Added code examples to README.md
- Renamed MrDatabase.get_next_id to MrDatabase.increment_id
- changed MrDatabase() to simply take a path instead of path and db name as separate arguments
- created unified namespace for imports

- property name is no longer required to be passed in as argument

- Fixed demo_blob.py