[tex-hyphen] Finnish basic hyphenation rules

[Arthur Reutenauer]

	Teemu,

  Thanks for checking!  I made several changes since you tested, can you
please try again?  The issue with words ending in pairs of vowels that
are not diphthongs should be fixed.

> Thanks! The hyphenated.txt file looks like the basic Finnish hyphenation
> is working as one would expect.

  You’re welcome!  It was actually quite fun to do.

> I would like to get those patterns to my own tex files. I tried to add
> them with \patterns{} but they cause conflicts with something defined
> elsewhere.
> 
>     (/usr/share/texlive/texmf-dist/tex/latex/base/size10.clo)) (./tavutus.aux)
>     ! Conflicting pattern ignored.
>     l.235 }

  I’ll make a test file.

	Best,

		Arthur