Is your feature request related to a problem? Please describe.
The Scansion().scan_text() method won't produce a result unless the text string to be scanned ends in a period ('.').

Describe the solution you'd like
It would be helpful to allow the user to specify the delimiter. In my case, I'd like to use the newline character (e.g., \n) so that I can scan multiple lines of poetry.

Describe alternatives you've considered
I have resorted to inserting a period at the end of every line, but that's tedious. It's also problematic if you're trying to study the relationship between line breaks and sentence termination.

Additional context
None.