Move unused forked code to external directory (#1192)

* Move unused forked code to external directory

* Fix SLN build errors

* Add back resource provider core since it's referenced by main resource provider project

* Update PackageProjects step of pipeline

external/Microsoft.SqlTools.CoreServices/SqlContext/SqlToolsSettings.cs

@@ -0,0 +1,145 @@
+//
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+//
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Newtonsoft.Json;
+
+namespace Microsoft.SqlTools.CoreServices.SqlContext
+{
+    /// <summary>
+    /// Class for serialization and deserialization of the settings the SQL Tools Service needs.
+    /// </summary>
+    public class SqlToolsSettings
+    {
+        private ISqlToolsSettingsValues sqlTools = null; 
+        private SqlToolsSettingsValues mssqlTools = null; 
+        private SqlToolsSettingsValues allSqlTools = null; 
+
+        public ISqlToolsSettingsValues SqlTools 
+        { 
+            get
+            {
+                if (this.sqlTools == null)
+                {
+                    this.sqlTools = new CompoundToolsSettingsValues(MssqlTools, AllSqlTools);
+                }
+                return this.sqlTools;
+            } 
+            set
+            {
+                this.sqlTools = value;
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the underlying settings value object
+        /// </summary>
+        [JsonProperty("mssql")]
+        public SqlToolsSettingsValues MssqlTools 
+        { 
+            get
+            {
+                if (this.mssqlTools == null)
+                {
+                    this.mssqlTools = new SqlToolsSettingsValues(false);
+                }
+                return this.mssqlTools;
+            } 
+            set
+            {
+                this.mssqlTools = value;
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the underlying settings value object
+        /// </summary>
+        [JsonProperty("sql")]
+        public SqlToolsSettingsValues AllSqlTools 
+        { 
+            get
+            {
+                if (this.allSqlTools == null)
+                {
+                    this.allSqlTools = new SqlToolsSettingsValues(false);
+                }
+                return this.allSqlTools;
+            } 
+            set
+            {
+                this.sqlTools = value;
+            }
+        }
+
+        /// <summary>
+        /// Query excution settings forwarding property
+        /// </summary>
+        // public QueryExecutionSettings QueryExecutionSettings 
+        // { 
+        //     get { return this.SqlTools.QueryExecutionSettings; } 
+        // }
+
+        /// <summary>
+        /// Updates the extension settings
+        /// </summary>
+        /// <param name="settings"></param>
+        public void Update(SqlToolsSettings settings)
+        {
+            if (settings != null)
+            {
+                this.SqlTools.IntelliSense.Update(settings.SqlTools.IntelliSense);
+            }
+        }
+
+        /// <summary>
+        /// Gets a flag determining if diagnostics are enabled
+        /// </summary>
+        public bool IsDiagnosticsEnabled
+        {
+            get
+            {
+                return this.SqlTools.IntelliSense.EnableIntellisense
+                    && this.SqlTools.IntelliSense.EnableErrorChecking.Value;
+            }
+        }
+
+        /// <summary>
+        /// Gets a flag determining if suggestions are enabled
+        /// </summary>
+        public bool IsSuggestionsEnabled
+        {
+            get
+            {
+                return this.SqlTools.IntelliSense.EnableIntellisense
+                    && this.SqlTools.IntelliSense.EnableSuggestions.Value;
+            }
+        }
+
+        /// <summary>
+        /// Gets a flag determining if quick info is enabled
+        /// </summary>
+        public bool IsQuickInfoEnabled
+        {
+            get
+            {
+                return this.SqlTools.IntelliSense.EnableIntellisense
+                    && this.SqlTools.IntelliSense.EnableQuickInfo.Value;
+            }
+        }
+
+        /// <summary>
+        /// Gets a flag determining if IntelliSense is enabled
+        /// </summary>
+        public bool IsIntelliSenseEnabled
+        {
+            get
+            {
+                return this.SqlTools.IntelliSense.EnableIntellisense;
+            }
+        }
+    }
+}