Move managed parser into its own project (test code coverage) (#774)

* Created New ManagedBatchParser project in .NetStandard

* Addressing PR Comments

* Resolve 'No Repository' warning.

* Move batch parser tests to integrations test project

* Fix SLN file

src/Microsoft.SqlTools.ServiceLayer/Connection/Contracts/ServerInfo.cs

@@ -3,7 +3,6 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
-using System;
 using System.Collections.Generic;
 
 namespace Microsoft.SqlTools.ServiceLayer.Connection.Contracts
@@ -73,11 +72,4 @@ namespace Microsoft.SqlTools.ServiceLayer.Connection.Contracts
         /// </summary>
         public Dictionary<string, object> Options { get; set; }
     }
-}
-
-public class ClusterEndpoint
-{
-    public string ServiceName;
-    public string IpAddress;
-    public int Port;
-}
+}