New package: libpam-google-authenticator

Void lacked a package for Google Authenticator, so one has been added.
libpam-google-authenticator: misc cleanups.

- Build with our {C,LD}FLAGS.
- Fix installation.
- Remove unnecessary rdeps and correct bdeps.

Close #754
mpv: update to 0.7.2.
New package: wesnoth-1.12
wesnoth: misc cleanups.

- Add missing build deps.
- Remove redundant build deps.
- Enable OpenMP.
- Added a runit service for the network daemon.

Close #748
wesnoth: fribidi cannot be detected; add dbus-devel bdep for non-native builds.
python-pbr: update to 0.10.5
perl-Term-ReadLine-Gnu: update to 1.25
net-snmp: update to 5.7.3.
par2cmdline: update to 0.6.11.
perl-DBD-SQLite: update to 1.46.
perl-DBI: update to 1.632.
perl-XML-Parser: update to 2.43.
perl-ExtUtils-Depends: update to 0.402.
perl-Glib: update to 1.306.
perl-IPC-Run: update to 0.94.
sublime-text3: update to 3065
Merge branch 'master' of github.com:voidlinux/void-packages