sysutils/puppet: update to 3.8.3

• update to 3.8.3 [1]
• refactor manifest check in puppetmaster rc.d script [2]
• bring in the pkgng package provider also used in Puppet 4 [3]
• take maintainership

PR: 203683 [1]
PR: 202704 [2]
Submitted by: tdb [1]
Submitted by: lemon <yesthanks@lemonia.org> [2]
Approved by: swills (maintainer)
Obtained from: https://github.com/xaque208/puppet-pkgng [3]
Differential Revision: https://reviews.freebsd.org/D4050