Per editor Connect support v0.1

- Basic plumbing to support connections for a URI rather than global connections. Typical use case is editor requests to connect, but this isn't the only possible use
- Tests pass but need updating to cover new functionality, and re-enable AutoCompleteService test once there is a ServiceDiscovery component that registers and returns services. This is necessary as .Instance won't allow for dependency injection and proper testing.

test/ServiceHost.Test/Workspace/WorkspaceServiceTests.cs

@@ -0,0 +1,78 @@
+// //
+// // Copyright (c) Microsoft. All rights reserved.
+// // Licensed under the MIT license. See LICENSE file in the project root for full license information.
+// //
+
+// using Microsoft.SqlTools.ServiceLayer.LanguageServices;
+// using Microsoft.SqlTools.ServiceLayer.WorkspaceServices.Contracts;
+// using Microsoft.SqlTools.Test.Utility;
+// using Xunit;
+
+// namespace Microsoft.SqlTools.ServiceLayer.Test.Workspace
+// {
+//     /// <summary>
+//     /// Tests for the ServiceHost Language Service tests
+//     /// </summary>
+//     public class WorkspaceServiceTests
+//     {
+        
+//         [Fact]
+//         public async Task ServiceLoadsProfilesOnDemand()
+//         {
+//             // Given an event detailing 
+
+//             // when 
+//             // Send the configuration change to cause profiles to be loaded
+//             await this.languageServiceClient.SendEvent(
+//                 DidChangeConfigurationNotification<LanguageServerSettingsWrapper>.Type,
+//                 new DidChangeConfigurationParams<LanguageServerSettingsWrapper>
+//                 {
+//                     Settings = new LanguageServerSettingsWrapper
+//                     {
+//                         Powershell = new LanguageServerSettings
+//                         {
+//                             EnableProfileLoading = true,
+//                             ScriptAnalysis = new ScriptAnalysisSettings
+//                             {
+//                                 Enable = false
+//                             }
+//                         }
+//                     }
+//                 });
+
+//             OutputReader outputReader = new OutputReader(this.protocolClient);
+
+//             Task<EvaluateResponseBody> evaluateTask =
+//                 this.SendRequest(
+//                     EvaluateRequest.Type,
+//                     new EvaluateRequestArguments
+//                     {
+//                         Expression = "\"PROFILE: $(Assert-ProfileLoaded)\"",
+//                         Context = "repl"
+//                     });
+
+//             // Try reading up to 10 lines to find the expected output line
+//             string outputString = null;
+//             for (int i = 0; i < 10; i++)
+//             {
+//                 outputString = await outputReader.ReadLine();
+
+//                 if (outputString.StartsWith("PROFILE"))
+//                 {
+//                     break;
+//                 }
+//             }
+
+//             // Delete the test profile before any assert failures
+//             // cause the function to exit
+//             File.Delete(currentUserCurrentHostPath);
+
+//             // Wait for the selection to appear as output
+//             await evaluateTask;
+//             Assert.Equal("PROFILE: True", outputString);
+//         }
+
+
+//     }
+// }
+