(GH-98) Add debug message during fact loading

This commit adds a debug message to the log when facts loading completes.  This
is useful in debugging to know when the thread has completed.

Author: glennsarti

server/lib/puppet-languageserver/facter_helper.rb

@@ -39,6 +39,7 @@ def self._load_facts
       _reset
       Facter.loadfacts
       @fact_hash = Facter.to_hash
+      PuppetLanguageServer.log_message(:debug, "[FacterHelper::_load_facts] Finished loading #{@fact_hash.keys.count} facts")
     end
     private_class_method :_load_facts
   end