Add IntelliSense binding queue (#73)

* Initial code for binding queue

* Fix-up some of the timeout wait code

* Add some initial test code

* Add missing test file

* Update the binding queue tests

* Add more test coverage and refactor a bit.  Disable reliabile connection until we can fix it..it's holding an open data reader connection.

* A few more test updates

* Initial integrate queue with language service.

* Hook up the connected binding queue into al binding calls.

* Cleanup comments and remove dead code

* More missing comments

* Fix build break.  Reenable ReliabileConnection.

* Revert all changes to SqlConnectionFactory

* Resolve merge conflicts

* Cleanup some more of the timeouts and sync code

* Address code review feedback

* Address more code review feedback

test/Microsoft.SqlTools.ServiceLayer.Test/QueryExecution/Common.cs

@@ -253,12 +253,7 @@ namespace Microsoft.SqlTools.ServiceLayer.Test.QueryExecution
             var metadataProvider = SmoMetadataProvider.CreateConnectedProvider(srvConn);
             var binder = BinderProvider.CreateBinder(metadataProvider);
 
-            LanguageService.Instance.ScriptParseInfoMap.Add(textDocument.TextDocument.Uri,
-                new ScriptParseInfo
-                {
-                    Binder = binder,
-                    MetadataProvider = metadataProvider
-                });
+            LanguageService.Instance.ScriptParseInfoMap.Add(textDocument.TextDocument.Uri,  new ScriptParseInfo());
 
             scriptFile = new ScriptFile {ClientFilePath = textDocument.TextDocument.Uri};