Dev (#2)

* Misc. clean-ups related to removing unneeded PowerShell Language Service code.
* Remove unneeded files and clean up remaining code.
* Enable file change tracking with Workspace and EditorSession.

ServiceHost/Server/LanguageServerSettings.cs

@@ -28,6 +28,7 @@ namespace Microsoft.SqlTools.EditorServices.Protocol.Server
             }
         }
     }
+ 
 
     public class ScriptAnalysisSettings
     {
@@ -77,6 +78,7 @@ namespace Microsoft.SqlTools.EditorServices.Protocol.Server
         }
     }
 
+
     public class LanguageServerSettingsWrapper
     {
         // NOTE: This property is capitalized as 'SqlTools' because the