science/libsvm: update to 3.22 and takeover maintainership

[ultima]

Summary

• Updated to 3.22
• New maintainer Jov <[e-mail]>

Changelog: http://www.csie.ntu.edu.tw/~cjlin/libsvm/log

PR\: 220102
Sumitted by\: Jov <[e-mail]> (maintainer)
Reviewed by\: lifanov (mentor), matthew (mentor)
Approved by\: lifanov (mentor), matthew (mentor)
Differential Revision\: https://reviews.freebsd.org/DXXXXX

Test Plan

WARN: /usr/local/poudriere/ports/default/science/libsvm/pkg-descr: exceeds 24 lines, make it shorter if possible.(currently 27 lines)
WARN: Makefile: for new port, make $FreeBSD$ tag in comment section empty, to make SVN happy.
0 fatal errors and 2 warnings found.
portlint complains about exceeding lines, but there is no limit set on porters handbook.
I don't really see a good reason to narrow it down a few lines so leaving it alone.

poudriere:
103i386
103amd64
110i386
110amd64
12i386
12amd64

[matthew]