Creates the parsed_lines dict which keeps all record data in document order indexed by the record type.

def _split_lines(self):
        '''Creates the parsed_lines dict which keeps all record data in document order indexed by the record type.'''
        parsed_lines = {}
        for rt in all_record_types:
            parsed_lines[rt] = []
        parsed_lines[0] = []

        for line in self.lines:
            linetype = line[0:6]
            if linetype in all_record_types:
                parsed_lines[linetype].append(line)
            else:
                parsed_lines[0].append(line)

        self.parsed_lines = parsed_lines
        self._update_structure_lines()