Remove automated buffering #57
Description
Currently, the user does not need to care about the buffers (create/update/delete).
However, this is slowing down the performance, since any field and object in the KItem model has a property for tracing partial updates and updating the buffers for the commit accordingly.
This can be improved by adding dsms.add and dsms.delete methods which become mandatory for the user in order to set the buffer for the commits.