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.ManagedBatchParser/BatchParser/PositionStruct.cs

@@ -0,0 +1,49 @@
+//
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+//
+
+using System;
+
+namespace Microsoft.SqlTools.ServiceLayer.BatchParser
+{
+    [Serializable]
+    public struct PositionStruct
+    {
+        private readonly int line;
+        private readonly int column;
+        private readonly int offset;
+        private readonly string filename;
+
+        /// <summary>
+        /// Constructor for the PositionStruct class
+        /// </summary>
+        public PositionStruct(int line, int column, int offset, string filename)
+        {
+            this.line = line;
+            this.column = column;
+            this.offset = offset;
+            this.filename = filename;
+        }
+
+        /// <summary>
+        /// Get line from the PositionStruct
+        /// </summary>
+        public int Line { get { return line; } }
+
+        /// <summary>
+        /// Get column from the PositionStruct
+        /// </summary>
+        public int Column { get { return column; } }
+
+        /// <summary>
+        /// Get offset from the PositionStruct
+        /// </summary>
+        public int Offset { get { return offset; } }
+
+        /// <summary>
+        /// Get file name from the PositionStruct
+        /// </summary>
+        public string Filename { get { return filename; } }
+    }
+}