Merge from vendor branch TNF:

Merge from vendor branch TNF:
Importing package for Perl5 module Lingua::Stem::Snowball::Se 1.2 (CPAN
dist Snowball-Swedish) into textproc/p5-Snowball-Swedish as dependency
for scheduled import of Lingua::Stem.

The stem function takes a scalar as a parameter and stems the word
according to Martin Porters Swedish stemming algorithm, which can be
found at the Snowball website: http://snowball.tartarus.org/.

It also supports caching if the use_cache option is passed when
constructing a new L:S:S:N object.