(PUP-1691) add install script template
(PUP-1691) add install script template

This is the same script found at https://chocolatey.org/install.ps1.

chocolatey/puppet-chocolatey,ThoughtCrhyme/puppetlabs-chocolatey,chocolatey/puppet-chocolatey,idoru78/puppet-chocolatey,maxgaulhofer/puppet-chocolatey,ferventcoder/puppet-chocolatey,ThoughtCrhyme/puppetlabs-chocolatey,9bryan/puppet-chocolatey,9bryan/puppet-chocolatey,korytkoBT/puppet-chocolatey,maxgaulhofer/puppet-chocolatey,rismoney/puppet-chocolatey,ferventcoder/puppet-chocolatey,korytkoBT/puppet-chocolatey,cregev/puppet-chocolatey,rismoney/puppet-chocolatey,idoru78/puppet-chocolatey,cregev/puppet-chocolatey