(GH-216) Add Puppet Data Types to syntax highlighting
(GH-216) Add Puppet Data Types to syntax highlighting

Previously the Puppet Data Types were not highlighted.  While not critical, most
typed languages will highlight Type names for ease of reading.  This commit adds
Puppet Data type highlighting.  See https://github.com/puppetlabs/puppet-specifications/blob/master/language/types_values_variables.md#the-type-system
for more information.

jpogran/puppet-vscode,glennsarti/puppet-vscode,jpogran/puppet-vscode