initial postgres puppet hardening module

TelekomLabs-DCO-1.1-Signed-off-by: Edmund Haselwanter <me@ehaselwanter.com> (github: ehaselwanter)
disable ssl for now, so we can test on all platforms

TelekomLabs-DCO-1.1-Signed-off-by: Edmund Haselwanter <me@ehaselwanter.com> (github: ehaselwanter)