Detect the number of affected rows by INSERT/UPDATE/DELETE.

As mentioned in

https://github.com/ClickHouse/clickhouse-odbc/issues/324#issuecomment-724233892

comment we need the clickhouse ODBC driver to be able to detect the number of affected rows by INSERT/UPDATE/DELETE (to return correct result for SQLRowCount function).
This is for developing ETL on informatica powercenter that connects to clickhouse with ODBC.
Without this feature Informatica gets 0 as return value from SQLRowCount function when inserting data to clickhouse through ODBC. Informatica then decides that 0 rows have been inserted and repeats insert. So this inserting repeats infinitely.