Read a single line from the stream, where a line is a
possibly zero length sequence of characters terminated by a
CR, LF, CRLF, LFCR, or eof.
The line terminator is not returned.
@retval false
End of file. This line is the last line of the file
(aLine is valid).
@retval true
The file contains further lines.
@note Do not mix readLine with other read functions.
Doing so can cause various problems and is not supported.