PrimitivePartioner does not account for locale settings

The class org.apache.pirk.schema.data.partitioner.PrimitiveTypePartitioner splits types into parts using logic that is specific to the current locale of the runtime environment.

In particular, it does not take account of default big endian or little endian byte ordering, and it uses the platform default encoding for converting to and from Strings. This is likely to lead to data corruption when exchanging data across different machine architectures and OS installations.