Log PID for debugging (#1160)

Author: rjmholt

src/PowerShellEditorServices.Hosting/EditorServicesLoader.cs

@@ -276,6 +276,10 @@ private void LogHostInformation()
         {
             _logger.Log(PsesLogLevel.Diagnostic, "Logging host information");
 
+_logger.Log(PsesLogLevel.Diagnostic, $@"
+PID: {System.Diagnostics.Process.GetCurrentProcess().Id}
+");
+
             _logger.Log(PsesLogLevel.Verbose, $@"
 == Build Details ==
 - Editor Services version: {BuildInfo.BuildVersion}