Added
* Added method `add_partitions_to_table` to add partitions receiving an exception if some partition already exists
([57](https://github.com/quintoandar/hive-metastore-client/pull/57))
Fixed
* Removed types-comparison when dropping a column ([56](https://github.com/quintoandar/hive-metastore-client/pull/56))
* Handled the partitions adding inside a loop (adding each partition individually) to fix a silent bug (if some
partition already existed, none of the list were added) ([57](https://github.com/quintoandar/hive-metastore-client/pull/57))