Policy for text file-based input sources to determine the end of a record, e.g.
RecordSeparatorPolicy that treats all lines as record endings, as
long as they do not have unterminated quotes, and do not end in a
JSON-based record separator.
RecordSeparatorPolicy - treats all lines as record
RecordSeparatorPolicy that looks for an exact match for a String at
the end of a line (e.g.
Infrastructure implementations of io file support separator concerns.