Add EnableConsoleRepl flag

Author: TylerLeonhardt

test/PowerShellEditorServices.Test.Host/ServerTestsBase.cs

@@ -61,6 +61,7 @@ protected async Task<Tuple<int, int>> LaunchService(
                     "-LogPath \"" + logPath + "\" " +
                     "-SessionDetailsPath \".\\sessionDetails\" " +
                     "-FeatureFlags @() " +
+                    "-EnableConsoleRepl " +
                     "-AdditionalModules @() ",
                    editorServicesModuleVersion);