New port: databases/sqlite-ext-spellfix

This module implements the spellfix1 VIRTUAL TABLE that can be used
to search a large vocabulary for close matches using Levenshtein distance.

Virtual table:

spellfix1

Functions:

editdist, editdist3, spellfix1_translit, spellfix1_phonehash,
spellfix1_scriptcode

WWW: http://www.sqlite.org/spellfix1.html

PR: 203217
Submitted by: Yuri <yuri@rawbw.com>