Location to write the type system to. If this is not set, a file called typesystem.xml will
be written to the XMI output path. If this is set, it is expected to be a file relative
to the current work directory or an absolute file.
If this parameter is set, the JCasFileWriter_ImplBase.PARAM_COMPRESSION parameter has no effect on the
type system. Instead, if the file name ends in ".gz", the file will be compressed,