[TypedText] support new-style linebreak chars when splitting text

[ivan-mogilko]

The module was originally made compatible with 3.2.1, so it uses old-style linebreak [.
Add support for the new-style '\n'.

UPDATE: escaped character literals did not work with the old script compiler. This is fixed in the latest 3.6.0 patch and 3.6.1, but for compatibility it may be worked around by using a string literal instead. That is - "\n" vs '\n'.