(GH-187) Suppress warnings when loading gems
(GH-187) Suppress warnings when loading gems

Previously older ruby versions with older Puppet gems would emit a warning about
Fiddler and DL on STDOUT.  This would confuse a STDIO Client as it pollutes
STDOUT with non JSON compliant text.  This commit suppresses verbose error
messages during the gem require statements.

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