Create new content from selected template

[jpogran]

The Puppet VS Code Extension should be able to create new Puppet Content using a selected Puppet Content Template. After the use selects a template from the quickpick provided by the PCT: New Content command, an input box for name and one for output should be shown to allow the user to enter the name of the new content and the location to put it in. The output inputbox should be a native folder selector instead of a raw text field.